/* ==========================================================================
   NurMunA Premium Design System & Stylesheet
   Created with modern CSS specifications (OKLCH, Glassmorphism, Fluid Layouts)
   ========================================================================== */

/* Font-display: swap — ensures text stays visible while custom fonts load async */
@font-face {
    font-family: 'Plus Jakarta Sans';
    font-display: swap;
}
@font-face {
    font-family: 'Inter';
    font-display: swap;
}

/* 1. Global Setup & Design Tokens */
@supports (interpolate-size: allow-keywords) {
    :root {
        interpolate-size: allow-keywords; /* Enables smooth height: auto transitions */
    }
}

:root {
    /* OKLCH Color Space (High Color Gamut & Perfect Luminosity Scaling) */
    --color-primary: oklch(62% 0.25 290);        /* Dynamic Apple Indigo/Violet */
    --color-accent-blue: oklch(65% 0.2 250);    /* Premium Apple Blue */
    --color-accent-teal: oklch(75% 0.18 190);   /* Vivid Ocean Teal */
    --color-primary-glow: oklch(62% 0.25 290 / 0.18);
    --color-accent-teal-glow: oklch(75% 0.18 190 / 0.15);
    
    /* Grayscale Slate & Carbon Palette */
    --color-bg: oklch(10% 0.015 285);           /* Deep Obsidian/Carbon */
    --color-bg-light: oklch(15% 0.02 285);     /* Sleek card container gray */
    --color-bg-card: oklch(18% 0.02 285 / 0.75);
    --color-text: oklch(94% 0.008 285);         /* Crisp soft white */
    --color-text-dim: oklch(70% 0.01 285);      /* Muted steel gray */
    --color-white: oklch(100% 0 0);
    --color-error: oklch(65% 0.2 25);           /* Premium alert red */
    
    /* Glassmorphism Variables */
    --glass-bg: rgba(12, 12, 16, 0.65);
    --glass-border: rgba(255, 255, 255, 0.07);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --glass-blur: blur(20px) saturate(190%);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --card-shadow-hover: 0 20px 40px 0 rgba(0, 0, 0, 0.6);

    /* Animation Easing Curves */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out-back: cubic-bezier(0.68, -0.6, 0.32, 1.6);
    --ease-apple-spring: cubic-bezier(0.25, 1, 0.5, 1.25);
    
    /* Border Radius standard */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* Reset and Global Defaults */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color-scheme: dark;
    background-color: var(--color-bg);
    color: var(--color-text);
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    background-color: var(--color-bg);
}

/* 2. Scrollbar Styling (Modern Cross-Browser Standard) */
html {
    scrollbar-color: var(--color-primary) var(--color-bg);
    scrollbar-width: thin;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-bg-light);
    border: 2px solid var(--color-bg);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Typography Custom Rules */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    text-wrap: balance; /* Prevents awkward single-word wrapping */
}

p {
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--color-text-dim);
    text-wrap: pretty; /* Distributes wrap nicely */
}

/* Glow Text & Gradient Typography */
.gradient-text {
    background: linear-gradient(135deg, var(--color-accent-teal) 0%, var(--color-accent-blue) 45%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.glow-text {
    text-shadow: 0 0 40px var(--color-primary-glow);
}

/* Ambient Radial Glow Orbs */
.ambient-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
    opacity: 0.85;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.35;
    mix-blend-mode: plus-lighter;
    will-change: transform;
    transform: translateZ(0);
}

.orb-1 {
    top: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--color-primary) 0%, rgba(0,0,0,0) 70%);
    animation: floating-orb 25s ease-in-out infinite alternate;
}

.orb-2 {
    bottom: -15%;
    left: -10%;
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle, var(--color-accent-teal) 0%, rgba(0,0,0,0) 70%);
    animation: floating-orb-reverse 30s ease-in-out infinite alternate;
}

.orb-3 {
    top: 40%;
    left: 45%;
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--color-accent-blue) 0%, rgba(0,0,0,0) 70%);
    animation: floating-orb 35s ease-in-out infinite alternate-reverse;
}

@keyframes floating-orb {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-8%, 10%) scale(1.15); }
}

@keyframes floating-orb-reverse {
    0% { transform: translate(0, 0) scale(1.1); }
    100% { transform: translate(10%, -8%) scale(0.9); }
}

/* Global Reusable Containers */
.section-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 56px auto;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
    background: linear-gradient(180deg, var(--color-white) 0%, oklch(80% 0 0) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
}

/* Glassmorphism Panel Template */
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow);
    transition: border-color 0.4s var(--ease-out-expo), box-shadow 0.4s var(--ease-out-expo), transform 0.4s var(--ease-out-expo);
}

.glass-panel:hover {
    border-color: var(--glass-border-hover);
}

/* Premium Buttons styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s var(--ease-out-expo);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-teal) 0%, var(--color-accent-blue) 50%, var(--color-primary) 100%);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 20px 0 var(--color-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px 0 var(--color-primary-glow), 0 0 20px 0 var(--color-accent-teal-glow);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary svg {
    transition: transform 0.3s var(--ease-out-expo);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary-glass {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--color-white);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.btn-secondary-glass:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

/* ==========================================================================
   3. Header Navigation (Glassmorphic & Sticky)
   ========================================================================== */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s var(--ease-out-expo);
}

.glass-nav.scrolled {
    padding: 8px 0;
    background: rgba(8, 8, 10, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--color-white);
    font-weight: 800;
    font-size: 1.35rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -0.03em;
}

.logo-text {
    transition: transform 0.3s var(--ease-out-expo);
}

.nav-logo:hover .logo-text {
    transform: translateX(2px);
}

.logo-svg {
    transition: transform 0.5s var(--ease-in-out-back);
}

.nav-logo:hover .logo-svg {
    transform: rotate(18deg) scale(1.05);
}

.logo-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
    transition: transform 0.5s var(--ease-in-out-back), filter 0.3s var(--ease-out-expo);
    filter: drop-shadow(0 0 8px rgba(138, 43, 226, 0.3));
}

.nav-logo:hover .logo-icon {
    transform: rotate(18deg) scale(1.08);
    filter: drop-shadow(0 0 12px rgba(138, 43, 226, 0.5));
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s var(--ease-out-expo);
    position: relative;
    padding: 6px 0;
}

.nav-link:hover {
    color: var(--color-white);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1.5px;
    background: linear-gradient(90deg, var(--color-accent-teal), var(--color-accent-blue));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s var(--ease-out-expo);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1100;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    position: relative;
    transition: background 0.3s var(--ease-out-expo);
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all 0.3s var(--ease-out-expo);
}

.hamburger::before { top: -6px; }
.hamburger::after { bottom: -6px; }

/* Mobile Menu Open States */
.mobile-nav-toggle.open .hamburger {
    background: transparent;
}
.mobile-nav-toggle.open .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}
.mobile-nav-toggle.open .hamburger::after {
    transform: rotate(-45deg);
    bottom: 0;
}

/* ==========================================================================
   4. Hero Section & SwiftUI Simulator
   ========================================================================== */
.hero-section {
    padding: 160px 0 100px 0;
    position: relative;
    text-align: center;
    overflow: hidden;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent-teal);
    margin-bottom: 24px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-teal);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-accent-teal);
    animation: heartbeat 2s infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.6; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.75rem);
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 72px;
}

/* macOS Visual Mockup Simulator */
.hero-visual {
    max-width: 950px;
    margin: 0 auto;
    background: oklch(14% 0.015 285 / 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.7);
    overflow: hidden;
    transform-origin: top center;
    position: relative;
    z-index: 10;
}

.window-chrome {
    background: oklch(16% 0.015 285);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    position: relative;
}

.window-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}
.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.window-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-dim);
}

.mock-workspace {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    height: 420px;
    background: oklch(10% 0.015 285 / 0.9);
}

.mock-editor {
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    text-align: left;
}

.editor-header {
    background: oklch(12% 0.015 285);
    padding: 8px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.file-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    background: oklch(10% 0.015 285);
    color: var(--color-text);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.file-tab.active {
    border-bottom: 2px solid var(--color-accent-teal);
}

.code-lines {
    padding: 24px;
    font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.82rem;
    line-height: 1.5;
    overflow-y: auto;
}

.code-keyword { color: #f472b6; }
.code-type { color: #818cf8; }
.code-func { color: #38bdf8; }
.code-string { color: #34d399; }
.code-literal { color: #fbbf24; }
.code-number { color: #f87171; }

.mock-preview {
    display: flex;
    flex-direction: column;
    background: oklch(12% 0.015 285 / 0.5);
}

.preview-header {
    background: oklch(12% 0.015 285 / 0.8);
    padding: 8px 16px;
    font-size: 0.75rem;
    color: var(--color-text-dim);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.preview-canvas {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    position: relative;
}

.canvas-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 28px;
    max-width: 250px;
    width: 100%;
    text-align: center;
    backdrop-filter: blur(8px);
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: float 6s ease-in-out infinite;
}

.preview-logo {
    margin-bottom: 16px;
}

.canvas-card h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.preview-tag {
    font-size: 0.7rem;
    color: var(--color-accent-teal);
    margin-bottom: 16px;
    font-weight: 600;
    text-transform: uppercase;
}

.preview-btn {
    background: var(--color-accent-blue);
    color: var(--color-white);
    padding: 8px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(129, 140, 248, 0.3);
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
    border: 2px solid var(--color-accent-teal-glow);
    border-radius: 50%;
    pointer-events: none;
    animation: pulse 4s infinite;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(0.85); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(1.3); opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ==========================================================================
   5. Platforms Hub Section
   ========================================================================== */
.platforms-section {
    padding: 100px 0;
    position: relative;
}

.platforms-hub {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.platforms-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    background: linear-gradient(180deg, rgba(18, 18, 24, 0.95), rgba(10, 10, 14, 0.88));
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 10px;
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 20px 50px rgba(0, 0, 0, 0.2);
}

.platform-tab {
    position: relative;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid transparent;
    cursor: pointer;
    padding: 16px 18px;
    border-radius: var(--radius-sm);
    color: var(--color-text-dim);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s var(--ease-out-expo);
    overflow: hidden;
}

.platform-tab::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(125, 214, 255, 0.08), rgba(149, 92, 255, 0.04));
    opacity: 0;
    transition: opacity 0.3s var(--ease-out-expo);
}

.platform-tab:hover {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-1px);
}

.platform-tab:hover::after {
    opacity: 1;
}

.platform-tab.active {
    color: var(--color-white);
    background: linear-gradient(135deg, rgba(39, 181, 209, 0.18), rgba(121, 72, 255, 0.18));
    border-color: rgba(125, 214, 255, 0.35);
    box-shadow: 0 16px 30px rgba(69, 166, 255, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    transform: translateY(-1px) scale(1.01);
}

.platform-tab.active::after {
    opacity: 1;
}

.tab-icon {
    font-size: 1.1rem;
    transition: transform 0.3s var(--ease-out-expo);
}

.platform-tab.active .tab-icon {
    transform: scale(1.12);
}

.tab-label {
    white-space: nowrap;
}

.platform-tab.active .tab-label {
    font-weight: 800;
    letter-spacing: 0.01em;
}

/* Panels */
.platforms-panels {
    width: 100%;
}

.platform-panel {
    display: none;
}

.platform-panel.active {
    display: block;
    animation: fadeIn 0.6s var(--ease-out-expo);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-content {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
    background: var(--color-bg-light);
    border: 1px solid var(--glass-border);
    padding: 56px;
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

.panel-text {
    text-align: left;
}

.panel-tag {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-accent-teal);
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.panel-text h3 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 20px;
    color: var(--color-white);
}

.panel-text p {
    font-size: 1.1rem;
    margin-bottom: 32px;
    line-height: 1.6;
}

.feature-bullets {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.feature-bullets li {
    font-size: 1rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Simulated Phone Layout Mockup */
.mock-phone {
    width: 250px;
    height: 500px;
    background: #000;
    border: 8px solid oklch(25% 0.01 285);
    border-radius: 40px;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
}

.phone-notch {
    width: 100px;
    height: 16px;
    background: #000;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #09090b 0%, #18181b 100%);
    padding: 32px 18px 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
}

.phone-app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 700;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-teal);
    border-radius: 50%;
    animation: heartbeat 2s infinite;
}

.phone-app-chart {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    height: 140px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 16px;
}

.chart-bar {
    width: 14px;
    height: var(--height);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    transition: height 1s;
}

.chart-bar.active {
    background: linear-gradient(to top, var(--color-primary), var(--color-accent-teal));
    box-shadow: 0 0 10px rgba(129, 140, 248, 0.4);
}

.phone-app-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    padding: 16px;
    text-align: center;
}

.phone-app-card p {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    margin-bottom: 4px;
}

.time-label {
    font-size: 2.2rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.phone-app-btn {
    width: 100%;
    background: var(--color-white);
    color: var(--color-bg);
    border: none;
    padding: 10px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
}

/* Simulated Mac Screen Layout Mockup */
.mock-mac-screen {
    width: 100%;
    max-width: 450px;
    height: 280px;
    background: oklch(14% 0.015 285);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    margin: 0 auto;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.mac-top-bar {
    background: oklch(16% 0.015 285);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mac-search {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 3px 20px;
    border-radius: 4px;
    font-size: 0.65rem;
    color: var(--color-text-dim);
}

.mac-sidebar-layout {
    display: grid;
    grid-template-columns: 110px 1fr;
    flex-grow: 1;
}

.mac-sidebar {
    background: oklch(12% 0.015 285);
    border-right: 1px solid rgba(255, 255, 255, 0.04);
    padding: 16px 8px;
    text-align: left;
}

.sidebar-item {
    font-size: 0.7rem;
    padding: 6px 10px;
    color: var(--color-text-dim);
    border-radius: 4px;
    cursor: pointer;
    margin-bottom: 4px;
}

.sidebar-item.active {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
    font-weight: 500;
}

.mac-grid {
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.mac-grid-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 12px;
    font-size: 0.7rem;
    text-align: left;
    display: flex;
    flex-direction: column;
}

.mac-grid-card span {
    font-weight: 600;
    color: var(--color-white);
}

.mac-grid-card small {
    color: var(--color-text-dim);
    font-size: 0.6rem;
    margin-top: 4px;
}

/* Simulated watchOS & Complications */
.mock-watch {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    width: 180px;
    margin: 0 auto;
}

.watch-strap-top {
    width: 90px;
    height: 60px;
    background: oklch(18% 0.01 285);
    border-radius: 12px 12px 0 0;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.watch-strap-bottom {
    width: 90px;
    height: 60px;
    background: oklch(18% 0.01 285);
    border-radius: 0 0 12px 12px;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.watch-body {
    width: 150px;
    height: 180px;
    background: oklch(10% 0 0);
    border: 6px solid oklch(35% 0 0);
    border-radius: 36px;
    padding: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    position: relative;
    z-index: 5;
}

.watch-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 26px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

.watch-time {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-white);
}

.watch-ring-metric {
    position: relative;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.watch-percentage {
    position: absolute;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-white);
}

.watch-label {
    font-size: 0.65rem;
    color: var(--color-accent-teal);
    font-weight: 700;
    text-transform: uppercase;
}

/* Simulated Spatial visionOS Viewport */
.mock-spatial-scene {
    width: 100%;
    max-width: 420px;
    height: 270px;
    background: radial-gradient(circle at center, #1e1b4b 0%, #020204 100%);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spatial-bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: center;
}

.spatial-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 16px;
    width: 240px;
    text-align: center;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    z-index: 10;
    transition: transform 0.5s var(--ease-out-expo);
}

.spatial-card:hover {
    transform: scale(1.03) translateZ(10px);
}

.spatial-glass-header {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.spatial-volumetric {
    position: relative;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.volumetric-sphere {
    width: 46px;
    height: 46px;
    background: radial-gradient(circle at 30% 30%, var(--color-accent-teal) 0%, var(--color-primary) 80%);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-primary-glow);
    animation: float 4s ease-in-out infinite;
}

.volumetric-ring {
    position: absolute;
    width: 76px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 50%;
    transform: rotateX(65deg);
    animation: spin-ring 10s linear infinite;
}

@keyframes spin-ring {
    0% { transform: rotateX(65deg) rotate(0deg); }
    100% { transform: rotateX(65deg) rotate(360deg); }
}

.spatial-card p {
    font-size: 0.75rem;
    color: var(--color-white);
}

/* ==========================================================================
   6. App Showcase snapping carousel
   ========================================================================== */
.showcase-section {
    padding: 100px 0;
    position: relative;
}

.showcase-carousel-wrapper {
    position: relative;
    width: 100%;
}

.showcase-carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 24px;
    padding-bottom: 24px;
    scrollbar-width: none; /* Hide scrollbar for smooth visual style */
}

.showcase-carousel::-webkit-scrollbar {
    display: none;
}

.carousel-slide {
    flex: 0 0 100%;
    scroll-snap-align: start;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    background: var(--color-bg-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 480px;
    box-shadow: var(--glass-shadow);
    transition: border-color 0.4s var(--ease-out-expo);
}

.carousel-slide:hover {
    border-color: var(--glass-border-hover);
}

.slide-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
    position: relative;
    overflow: hidden;
    border-right: 1px solid var(--glass-border);
}

.spatial-glass-mock {
    width: 100%;
    max-width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}

.spatial-svg {
    width: 80%;
    height: 80%;
}

/* Slide 2 Visual components */
.aura-fluid-mock {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fluid-sphere {
    width: 120px;
    height: 120px;
    background: radial-gradient(circle at 30% 30%, var(--color-accent-teal) 0%, var(--color-accent-blue) 100%);
    border-radius: 50%;
    filter: blur(15px);
    animation: float 6s ease-in-out infinite;
}

.fluid-pulse {
    position: absolute;
    width: 160px;
    height: 160px;
    border: 2px solid var(--color-accent-teal-glow);
    border-radius: 50%;
    animation: heartbeat-ring 3s ease-out infinite;
}

@keyframes heartbeat-ring {
    0% { transform: scale(0.85); opacity: 1; }
    100% { transform: scale(1.35); opacity: 0; }
}

/* Slide 3 Visual components */
.lumina-hdr-mock {
    width: 100%;
    max-width: 320px;
    height: 200px;
    background: #000;
    border: 2px solid oklch(25% 0.01 285);
    border-radius: 12px;
    position: relative;
    padding: 10px;
}

.hdr-viewport {
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Crect width='100' height='100' fill='%2318181b'/%3E%3Cpath d='M0 80 Q25 20, 50 60 T100 30' stroke='oklch(62%25 0.25 290)' stroke-width='3' fill='none'/%3E%3C/svg%3E") center/cover;
    border-radius: 6px;
    position: relative;
}

.viewport-histogram {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: flex;
    gap: 4px;
    background: rgba(0,0,0,0.6);
    padding: 6px;
    border-radius: 4px;
}

.hist {
    width: 18px;
    height: 24px;
    display: inline-block;
    border-radius: 2px;
    opacity: 0.8;
}
.hist-red { background: var(--color-error); height: 16px; }
.hist-green { background: var(--color-accent-teal); height: 22px; }
.hist-blue { background: var(--color-accent-blue); height: 12px; }

.viewport-focus-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-accent-teal);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--color-accent-teal-glow);
}

.slide-info {
    padding: 56px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;
}

.slide-tag {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.tag-vision { color: var(--color-accent-teal); }
.tag-ios { color: var(--color-accent-blue); }

.slide-info h3 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--color-white);
}

.slide-info p {
    font-size: 1.05rem;
    margin-bottom: 32px;
}

.slide-stats {
    display: flex;
    gap: 32px;
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
}

.slide-stats div {
    display: flex;
    flex-direction: column;
}

.slide-stats span {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-dim);
    text-transform: uppercase;
}

.slide-stats small {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-white);
    margin-top: 4px;
}

/* Carousel Control Elements */
.carousel-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 32px;
}

.carousel-indicators {
    display: flex;
    gap: 8px;
}

.indicator {
    width: 24px;
    height: 4px;
    background: rgba(255,255,255,0.15);
    border: none;
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.3s var(--ease-out-expo);
}

.indicator.active {
    width: 48px;
    background: var(--color-accent-teal);
}

.carousel-arrows {
    display: flex;
    gap: 12px;
}

.arrow-btn {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s var(--ease-out-expo);
}

.arrow-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    transform: scale(1.05);
}

.arrow-btn:active {
    transform: scale(0.95);
}

/* ==========================================================================
   7. Capabilities Grid Section
   ========================================================================== */
.capabilities-section {
    padding: 100px 0;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.capability-card {
    padding: 40px;
    text-align: left;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.capability-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--glass-border-hover);
}

.card-icon {
    font-size: 2.25rem;
    margin-bottom: 24px;
}

.capability-card h4 {
    font-size: 1.35rem;
    color: var(--color-white);
    margin-bottom: 12px;
}

/* ==========================================================================
   8. About & Trust Banner
   ========================================================================== */
.about-section {
    padding: 80px 0 120px 0;
}

.about-card {
    padding: 64px;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 65%);
    pointer-events: none;
}

.about-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 5;
}

.about-content {
    position: relative;
}

.about-content h2 {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    color: var(--color-white);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 1.15rem;
    line-height: 1.6;
    margin-bottom: 48px;
}

.about-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.metric-item {
    display: flex;
    flex-direction: column;
    border-left: 2px solid var(--color-accent-teal);
    padding-left: 20px;
}

.metric-num {
    font-size: 2.5rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
    margin-bottom: 8px;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* About Section Visual Emblem Frame */
.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.brand-image-frame {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    padding: 16px;
    border-radius: var(--radius-lg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    max-width: 320px;
    width: 100%;
    transition: all 0.4s var(--ease-out-expo);
}

.brand-image-frame:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 20px var(--color-accent-teal-glow);
}

.brand-emblem-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    transition: transform 0.6s var(--ease-out-expo);
    display: block;
}

.brand-emblem-image:hover {
    transform: scale(1.04) rotate(1deg);
}

/* Simulated Live Preview Brand Logo */
.preview-brand-logo {
    width: 100%;
    max-width: 110px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.4s var(--ease-out-expo);
}

.preview-brand-logo:hover {
    transform: scale(1.05);
}

/* Responsive constraints for about-layout */
@media (max-width: 992px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    .about-visual {
        order: -1; /* image on top for tablet/mobile viewports */
    }
    .metric-item {
        border-left: none;
        border-top: 2px solid var(--color-accent-teal);
        padding-left: 0;
        padding-top: 12px;
    }
}

/* ==========================================================================
   9. Custom Footer
   ========================================================================== */
.footer {
    background: oklch(8% 0.015 285);
    border-top: 1px solid var(--glass-border);
    padding: 80px 0 40px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 64px;
    margin-bottom: 64px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: left;
}

.brand-desc {
    font-size: 0.95rem;
    max-width: 320px;
}

.footer-links {
    text-align: left;
}

.footer-links h5 {
    color: var(--color-white);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s var(--ease-out-expo);
}

.footer-links a:hover {
    color: var(--color-accent-teal);
}

.footer-address {
    font-size: 0.95rem;
    color: var(--color-text-dim);
    line-height: 1.7;
    list-style: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 0.8rem;
    max-width: 600px;
    text-align: left;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    text-decoration: none;
    transition: color 0.3s var(--ease-out-expo);
}

.footer-legal a:hover {
    color: var(--color-white);
}

/* ==========================================================================
   10. Native Estimator Dialog Panel
   ========================================================================== */
.contact-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: 95%;
    max-width: 650px;
    border: 1px solid var(--glass-border);
    padding: 36px;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s var(--ease-out-expo);
}

/* Dialog Open styling */
.contact-dialog[open] {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

/* Native dialog backdrop background styling */
.contact-dialog::backdrop {
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.4s var(--ease-out-expo);
}

.contact-dialog[open]::backdrop {
    opacity: 1;
}

/* Transition starting-style support (modern browsers) */
@starting-style {
    .contact-dialog[open] {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.95);
    }
    .contact-dialog[open]::backdrop {
        opacity: 0;
    }
}

.dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.dialog-header h3 {
    font-size: 1.6rem;
    color: var(--color-white);
}

.close-dialog-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s var(--ease-out-expo);
}

.close-dialog-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.dialog-desc {
    font-size: 0.95rem;
    margin-bottom: 28px;
    text-align: left;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-white);
}

.form-group input, 
.form-group select, 
.form-group textarea {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--color-white);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s var(--ease-out-expo);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-dim);
    opacity: 0.6;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-teal);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 10px var(--color-accent-teal-glow);
}

/* User Interaction validation styling (:user-invalid) */
.form-group input:user-invalid, 
.form-group select:user-invalid, 
.form-group textarea:user-invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 10px oklch(65% 0.2 25 / 0.15);
}

/* Programmatic Error message label */
.error-msg {
    display: none;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-error);
}

.form-group input:user-invalid ~ .error-msg,
.form-group select:user-invalid ~ .error-msg,
.form-group textarea:user-invalid ~ .error-msg {
    display: block;
}

/* Brand Consistent Form controls */
.form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 14px;
    padding-right: 40px;
}

.form-checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: left;
}

.form-checkbox-group input[type="checkbox"] {
    accent-color: var(--color-accent-teal); /* brand-consistent checkbox highlight */
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-checkbox-group label {
    font-size: 0.85rem;
    color: var(--color-text);
    cursor: pointer;
}

.dialog-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 12px;
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
}

/* Success View Frame inside Dialog */
.dialog-success-view {
    text-align: center;
    padding: 24px 12px;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: var(--color-accent-teal-glow);
    border: 2px solid var(--color-accent-teal);
    border-radius: 50%;
    color: var(--color-accent-teal);
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
}

.dialog-success-view h3 {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: 12px;
}

.dialog-success-view p {
    font-size: 1rem;
    margin-bottom: 32px;
    line-height: 1.5;
}

/* ==========================================================================
   11. Responsiveness Breakpoints (Perfect fluid layouts)
   ========================================================================== */

/* Tablet Breakpoint (992px) */
@media (max-width: 992px) {
    .panel-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px;
    }
    
    .panel-visual {
        order: -1; /* visual on top for mobile layout */
    }
    
    .carousel-slide {
        grid-template-columns: 1fr;
    }
    
    .slide-visual {
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
        padding: 32px;
    }
    
    .slide-info {
        padding: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

/* Mobile Breakpoint (768px) */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 69px;
        left: 0;
        width: 100%;
        height: calc(100vh - 69px);
        background: oklch(10% 0.01 285 / 0.98);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        flex-direction: column;
        padding: 48px 24px;
        gap: 32px;
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.5s var(--ease-out-expo), opacity 0.4s var(--ease-out-expo);
        pointer-events: none;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .nav-actions .btn {
        display: none; /* Hide primary nav button on mobile to save space */
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin: 0 auto 56px auto;
    }

    .mock-workspace {
        grid-template-columns: 1fr;
        height: auto;
    }

    .mock-preview {
        display: none; /* Hide interactive canvas simulator inside editor frame on small screens */
    }

    .platforms-tabs {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }
    
    .platform-tab {
        padding: 10px;
        font-size: 0.85rem;
    }

    .about-metrics {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Very Small Screen Breakpoint (480px) */
@media (max-width: 480px) {
    .platforms-tabs {
        grid-template-columns: 1fr;
    }
    
    .panel-content {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-dialog {
        padding: 24px 16px;
    }
}

/* ==========================================================================
   12. Micro-Animations & Entry Reveals
   ========================================================================== */
.animate-fade-in {
    opacity: 0;
    animation: simpleFadeIn 1s var(--ease-out-expo) forwards;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(24px);
    animation: slideUp 1s var(--ease-out-expo) forwards;
}

.animate-slide-up-delayed {
    opacity: 0;
    transform: translateY(24px);
    animation: slideUp 1s var(--ease-out-expo) 0.2s forwards;
}

.animate-scale-up {
    opacity: 0;
    transform: scale(0.95) translateY(32px);
    animation: scaleUp 1.2s var(--ease-out-expo) 0.4s forwards;
}

@keyframes simpleFadeIn {
    to { opacity: 1; }
}

@keyframes slideUp {
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleUp {
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Standard Scroll-driven entrance reveals using JavaScript IntersectionObserver */
.scroll-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}