/* 
  High-End Visual Design CSS Architecture 
  Vibe: Soft Structuralism (Consumer/Portfolio)
  Motion: Fluid Dynamics (Mass & Spring Physics)
*/

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* Soft Structuralism Palette */
    --bg-canvas: #F9F9FB; /* Ultra-light silver-grey */
    --bg-surface: #FFFFFF;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    
    /* Double-Bezel Structural Tints */
    --bezel-outer-bg: rgba(0, 0, 0, 0.02);
    --bezel-outer-border: rgba(0, 0, 0, 0.04);
    --bezel-inner-highlight: inset 0 1px 1px rgba(255, 255, 255, 0.5);
    
    /* Brand Accent: Muted Sapphire / Sage */
    --accent-blue: #3B82F6;
    --accent-blue-soft: #EFF6FF;
    --accent-sage: #10B981;
    --accent-sage-soft: #ECFDF5;
    
    /* Vibrant Gradients */
    --gradient-hero: radial-gradient(circle at top, rgba(59, 130, 246, 0.1) 0%, rgba(16, 185, 129, 0.05) 40%, rgba(249, 249, 251, 0) 70%);

    /* Typographic Configuration */
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    
    /* Spatial Rhythm (Macro Whitespace) */
    --space-base: 0.25rem;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
    --space-32: 8rem;
    --space-40: 10rem;
    
    /* Radii */
    --radius-full: 9999px;
    --radius-outer: 2rem; /* 32px */
    --radius-inner: calc(2rem - 0.375rem); /* 26px */
    
    /* Fluid Motion Physics */
    --ease-fluid: cubic-bezier(0.32, 0.72, 0, 1);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --duration-fast: 300ms;
    --duration-slow: 700ms;
    --duration-hero: 1000ms;
    
    /* Soft Ambient Diffused Shadows */
    --shadow-ambient: 0 20px 60px -15px rgba(0, 0, 0, 0.05);
    --shadow-ambient-hover: 0 30px 80px -20px rgba(0, 0, 0, 0.08);
}

/* Inverted Dark Theme Override (Soft Structuralism translated to Dark) */
[data-theme="dark"] {
    --bg-canvas: #050505;
    --bg-surface: #0A0A0B;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --bezel-outer-bg: rgba(255, 255, 255, 0.02);
    --bezel-outer-border: rgba(255, 255, 255, 0.05);
    --bezel-inner-highlight: inset 0 1px 1px rgba(255, 255, 255, 0.05);
    --shadow-ambient: 0 20px 60px -15px rgba(0, 0, 0, 0.4);
    --shadow-ambient-hover: 0 30px 80px -20px rgba(0, 0, 0, 0.6);
    --accent-blue-soft: #0c1a2d;
    --accent-sage-soft: #051b12;
    --gradient-hero: radial-gradient(circle at top, rgba(59, 130, 246, 0.15) 0%, rgba(16, 185, 129, 0.1) 40%, rgba(5, 5, 5, 0) 70%);
}

/* Global Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
    font-family: var(--font-sans);
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100dvh; /* Prevent iOS Safari jump */
    overflow-x: hidden;
    transition: background-color var(--duration-slow) var(--ease-fluid), color var(--duration-slow) var(--ease-fluid);
}

a { text-decoration: none; color: inherit; }

/* Structural Utility: Eyebrow Tags */
.eyebrow-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: var(--bezel-outer-bg);
    border: 1px solid var(--bezel-outer-border);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

/* Typography Scale */
h1, h2, h3 { font-weight: 800; letter-spacing: -0.04em; line-height: 1.1; }
h1 { font-size: clamp(3.5rem, 8vw, 6rem); margin-bottom: var(--space-8); }
h2 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: var(--space-6); }
p.lead { font-size: clamp(1.125rem, 2vw, 1.35rem); color: var(--text-secondary); max-width: 60ch; }

/* Double-Bezel Architecture (Doppelrand) */
.double-bezel-outer {
    background: var(--bezel-outer-bg);
    border: 1px solid var(--bezel-outer-border);
    padding: var(--space-2);
    border-radius: var(--radius-outer);
    transition: transform var(--duration-slow) var(--ease-fluid), box-shadow var(--duration-slow) var(--ease-fluid);
}
.double-bezel-inner {
    background: var(--bg-surface);
    border-radius: var(--radius-inner);
    padding: var(--space-12);
    box-shadow: var(--shadow-ambient), var(--bezel-inner-highlight);
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Interactive Bezel Hover Physics */
.interactive-bezel:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--shadow-ambient-hover);
}

/* Fluid Island Navbar */
.nav-wrapper {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
    pointer-events: none; /* Let clicks pass through wrapper */
}
.nav-island {
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-full);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    box-shadow: 0 10px 40px -10px rgba(0,0,0,0.05);
}
[data-theme="dark"] .nav-island {
    background: rgba(10, 10, 11, 0.7);
    border-color: rgba(255, 255, 255, 0.08);
}
.nav-brand { font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: var(--space-8); align-items: center; }
.nav-links a { font-weight: 600; font-size: 0.9rem; color: var(--text-secondary); transition: color var(--duration-fast) var(--ease-fluid); }
.nav-links a:hover { color: var(--text-primary); }

/* Nested CTA Button Architecture */
.btn-group { display: flex; gap: var(--space-4); align-items: center; flex-wrap: wrap; }

.btn {
    appearance: none; border: none; cursor: pointer;
    font-family: inherit; font-weight: 700; font-size: 0.95rem;
    color: var(--text-primary);
    padding: 8px 8px 8px 24px; /* Asymmetric padding for nested icon */
    border-radius: var(--radius-full);
    display: inline-flex; align-items: center; gap: var(--space-4);
    transition: transform var(--duration-fast) var(--ease-fluid), box-shadow var(--duration-fast) var(--ease-fluid), background var(--duration-fast) var(--ease-fluid), color var(--duration-fast) var(--ease-fluid);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-canvas);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.2);
}
[data-theme="dark"] .btn-primary { color: #000; }

.btn-primary .icon-circle {
    width: 32px; height: 32px; border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.15);
    display: flex; align-items: center; justify-content: center;
    transition: transform var(--duration-slow) var(--ease-spring);
}
[data-theme="dark"] .btn-primary .icon-circle { background: rgba(0, 0, 0, 0.15); }

/* Magnetic Button Hover Physics */
.btn-primary:active { transform: scale(0.98); }
.btn-primary:hover {
    box-shadow: 0 15px 40px -10px rgba(0,0,0,0.3);
}
.btn-primary:hover .icon-circle {
    transform: translate(2px, -2px) scale(1.05);
}

.btn-secondary {
    background: var(--bezel-outer-bg);
    color: var(--text-primary);
    border: 1px solid var(--bezel-outer-border);
    padding: 12px 24px; /* Symmetrical */
}
.btn-secondary:hover { background: var(--bg-surface); }
.btn-secondary:active { transform: scale(0.98); }

/* Container & Whitespace */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    width: 100%;
}
.section-massive { padding-top: var(--space-40); padding-bottom: var(--space-40); }
.section-large { padding-top: var(--space-24); padding-bottom: var(--space-24); }

/* Hero Section */
.hero {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding-top: var(--space-32);
}

.hero-glow {
    position: absolute;
    top: 0; left: 0; right: 0; height: 100vh;
    background: var(--gradient-hero);
    z-index: -1;
    pointer-events: none;
}

.text-gradient {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
[data-theme="dark"] .text-gradient {
    background: linear-gradient(135deg, #FFFFFF 0%, #93C5FD 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Asymmetrical Bento Grid (Z-Axis Depth optional but keeping flat for Structuralism) */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-6);
}

.bento-item-large { grid-column: span 8; }
.bento-item-small { grid-column: span 4; }

.bento-icon-wrapper {
    width: 56px; height: 56px;
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    margin-bottom: var(--space-8);
}
.gradient-blue { background: linear-gradient(135deg, #EFF6FF, #DBEAFE); color: #2563EB; }
.gradient-purple { background: linear-gradient(135deg, #F5F3FF, #EDE9FE); color: #7C3AED; }
.gradient-green { background: linear-gradient(135deg, #ECFDF5, #D1FAE5); color: #059669; }
.gradient-orange { background: linear-gradient(135deg, #FFF7ED, #FFEDD5); color: #EA580C; }

[data-theme="dark"] .gradient-blue { background: linear-gradient(135deg, #1E3A8A, #172554); color: #60A5FA; }
[data-theme="dark"] .gradient-purple { background: linear-gradient(135deg, #4C1D95, #2E1065); color: #A78BFA; }
[data-theme="dark"] .gradient-green { background: linear-gradient(135deg, #064E3B, #022C22); color: #34D399; }
[data-theme="dark"] .gradient-orange { background: linear-gradient(135deg, #7C2D12, #431407); color: #FDBA74; }

/* Interpolated Scroll Entry Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(4rem);
    filter: blur(8px);
    transition: opacity var(--duration-hero) var(--ease-fluid),
                transform var(--duration-hero) var(--ease-fluid),
                filter var(--duration-hero) var(--ease-fluid);
    will-change: transform, opacity;
}
.scroll-reveal.in-view {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }
.stagger-4 { transition-delay: 400ms; }

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed; inset: 0; z-index: 99;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    opacity: 0; pointer-events: none;
    transition: opacity var(--duration-slow) var(--ease-fluid);
}
[data-theme="dark"] .mobile-menu-overlay { background: rgba(5, 5, 5, 0.85); }
.mobile-menu-overlay.active { opacity: 1; pointer-events: auto; }

/* QR Code Modal */
.modal-overlay {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex; justify-content: center; align-items: center;
    opacity: 0; pointer-events: none;
    transition: opacity var(--duration-fast) var(--ease-fluid);
}
[data-theme="dark"] .modal-overlay { background: rgba(0, 0, 0, 0.6); }
.modal-overlay.active { opacity: 1; pointer-events: auto; }

.modal-content {
    transform: scale(0.95) translateY(20px);
    opacity: 0;
    transition: transform var(--duration-slow) var(--ease-fluid), opacity var(--duration-slow) var(--ease-fluid);
    max-width: 90vw;
    width: 320px;
}
.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}
#close-modal:hover { color: var(--text-primary) !important; }

.mobile-nav-links { display: flex; flex-direction: column; gap: var(--space-8); text-align: center; }
.mobile-nav-link {
    font-size: 2rem; font-weight: 800; color: var(--text-primary);
    opacity: 0; transform: translateY(2rem);
    transition: opacity var(--duration-slow) var(--ease-fluid), transform var(--duration-slow) var(--ease-fluid);
}
.mobile-menu-overlay.active .mobile-nav-link { opacity: 1; transform: translateY(0); }
.mobile-menu-overlay.active .mobile-nav-link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu-overlay.active .mobile-nav-link:nth-child(2) { transition-delay: 150ms; }
.mobile-menu-overlay.active .mobile-nav-link:nth-child(3) { transition-delay: 200ms; }
.mobile-menu-overlay.active .mobile-nav-link:nth-child(4) { transition-delay: 250ms; }

/* Hamburger Morph */
.hamburger {
    width: 40px; height: 40px; border-radius: var(--radius-full);
    background: var(--bezel-outer-bg); border: 1px solid var(--bezel-outer-border);
    display: none; flex-direction: column; justify-content: center; align-items: center; gap: 4px;
    cursor: pointer; z-index: 101; position: relative;
}
.hamburger-line {
    width: 18px; height: 2px; background: var(--text-primary);
    transition: transform var(--duration-slow) var(--ease-spring), opacity var(--duration-fast);
    transform-origin: center;
}
.hamburger.active .hamburger-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Footer */
.footer-massive {
    padding-top: var(--space-32);
    padding-bottom: var(--space-12);
    border-top: 1px solid var(--bezel-outer-border);
}

/* Mobile Collapse Overrides */
@media (max-width: 1024px) {
    .bento-item-large { grid-column: span 12; }
    .bento-item-small { grid-column: span 6; }
}

@media (max-width: 768px) {
    /* Aggressive Fallback */
    .container { padding: 0 20px; width: 100%; }
    .bento-grid { grid-template-columns: 1fr; gap: var(--space-6); }
    .bento-item-small, .bento-item-large { grid-column: span 1; }
    
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .nav-island { padding: 8px 16px; }
    .nav-wrapper { padding-top: var(--space-4); }
    
    .section-massive { padding-top: var(--space-24); padding-bottom: var(--space-24); }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .double-bezel-inner { padding: var(--space-8); }
}