/* ==========================================================================
   SKP CAPITAL — Premium Design System & Typography
   ========================================================================== */

/* 1. CSS Custom Property Design Tokens */
:root {
    /* Color Palette — Swiss Financial Excellence & Tech */
    --color-bg-deep: #050507;
    --color-bg-panel: #0d0d11;
    --color-bg-glass: rgba(10, 10, 14, 0.72);
    --color-border-glass: rgba(255, 255, 255, 0.07);
    --color-border-glass-hover: rgba(255, 255, 255, 0.14);
    
    --color-text-primary: #f8f9fa;
    --color-text-secondary: #a0a5b1;
    --color-text-muted: #5e6473;
    
    --color-swiss-red: #D81F26;
    --color-swiss-red-glow: rgba(216, 31, 38, 0.3);
    
    --color-accent-blue: #3b82f6;
    --color-accent-gradient: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
    --color-card-glow: rgba(255, 255, 255, 0.02);

    /* Fluid Typography Scale (using clamp to avoid rigid breakpoints) */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Outfit', 'Inter', sans-serif;
    --font-mono: 'Courier Prime', monospace;

    --text-xs: clamp(0.75rem, 1vw, 0.8125rem);
    --text-sm: clamp(0.875rem, 1.2vw, 0.9375rem);
    --text-base: clamp(1rem, 1.5vw, 1.0625rem);
    --text-lg: clamp(1.125rem, 1.8vw, 1.25rem);
    --text-xl: clamp(1.25rem, 2vw, 1.5rem);
    --text-xxl: clamp(2rem, 4vw, 3.5rem); /* Giant centerpiece word */

    /* Spacing Scale (Fluid) */
    --space-xs: clamp(0.5rem, 1vw, 0.75rem);
    --space-s: clamp(0.75rem, 1.5vw, 1.125rem);
    --space-m: clamp(1.25rem, 2vw, 1.75rem);
    --space-l: clamp(2rem, 3.5vw, 3rem);
    --space-xl: clamp(3.5rem, 6vw, 5rem);

    /* Animation Timings */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-snappy: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* 2. Base Document Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--color-bg-deep);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    min-height: 100dvh;
    overflow-x: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* 3. HTML5 Canvas Background */
#physics-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none; /* Let clicks pass through to interactive triggers if needed, but we manage coordinates in JS */
}

/* 4. App Header Navigation */
.app-header {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: var(--space-m) var(--space-l);
    width: 100%;
}

.header-left {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.header-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-m);
}

.brand-logo {
    height: clamp(40px, 3.5vw, 54px);
    width: auto;
    display: block;
    object-fit: contain;
}

.swiss-badge {
    display: flex;
    align-items: center;
    gap: var(--space-s);
    cursor: pointer;
}

.swiss-cross {
    filter: drop-shadow(0 0 10px var(--color-swiss-red-glow));
    transition: var(--transition-smooth);
}

.swiss-badge:hover .swiss-cross {
    transform: rotate(90deg) scale(1.05);
}

.swiss-cross.spin-active {
    transform: rotate(360deg) scale(1.1) !important;
}

.header-btn {
    background: none;
    border: none;
    outline: none;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 400;
    color: var(--color-text-primary);
    text-decoration: none;
    cursor: pointer;
    position: relative;
    padding: var(--space-xs) var(--space-s);
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.header-btn::before {
    content: '[';
    margin-right: 0.25rem;
    color: var(--color-text-primary);
    transition: var(--transition-smooth);
}

.header-btn::after {
    content: ']';
    margin-left: 0.25rem;
    color: var(--color-text-primary);
    transition: var(--transition-smooth);
}

.header-btn:hover {
    color: var(--color-text-primary);
}

.header-btn:hover::before {
    color: var(--color-text-primary);
    transform: translateX(-3px);
}

.header-btn:hover::after {
    color: var(--color-text-primary);
    transform: translateX(3px);
}

/* 5. Centerpiece & Dictionary Entry layout */
.centerpiece-container {
    position: relative;
    z-index: 5;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: var(--space-m);
}

/* The Dictionary-Style Central Boundary Card */
.dictionary-card {
    background: var(--color-bg-glass);
    border: 1px solid var(--color-border-glass);
    border-radius: 24px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    width: 100%;
    max-width: 520px;
    padding: var(--space-l);
    box-shadow: 
        0 24px 80px rgba(0, 0, 0, 0.6), 
        inset 0 1px 1px rgba(255, 255, 255, 0.05),
        0 0 40px var(--color-card-glow);
    transition: var(--transition-smooth);
    margin-bottom: var(--space-l);
    cursor: default;
}

.dictionary-card:hover {
    border-color: var(--color-border-glass-hover);
    box-shadow: 
        0 30px 100px rgba(0, 0, 0, 0.7), 
        inset 0 1px 2px rgba(255, 255, 255, 0.08),
        0 0 50px rgba(255, 255, 255, 0.03);
    transform: translateY(-2px);
}

.phonetic-entry {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-xs);
}

.phonetic-word {
    font-family: var(--font-serif);
    font-size: var(--text-xxl);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--color-text-primary);
    line-height: 1.05;
}

.phonetic-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem var(--space-s);
}

.dictionary-entry-word {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 0.02em;
    margin-bottom: var(--space-xs);
}

.phonetic-pronunciation {
    font-family: var(--font-mono);
    font-style: italic;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    letter-spacing: 0.05em;
}

.phonetic-pos {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.card-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, var(--color-border-glass) 0%, rgba(255,255,255,0.01) 100%);
    margin: var(--space-m) 0;
}

.definition-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-s);
}

.definition-text {
    font-family: var(--font-serif);
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.definition-num {
    font-family: var(--font-mono);
    color: var(--color-text-primary);
    font-weight: bold;
    margin-right: var(--space-xs);
}

.highlight-concept {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--color-text-primary);
}

.dictionary-footnote {
    margin-top: var(--space-m);
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* One-Liner Description Below Card */
.tagline-container {
    width: 100%;
    max-width: 680px;
    text-align: center;
    padding: 0 var(--space-m);
}

.main-tagline {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--color-text-secondary);
    letter-spacing: -0.01em;
}

.gradient-text {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 500;
}

.glow-text {
    color: var(--color-text-primary);
    font-weight: 500;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
}

/* 6. Bottom Interactive Control Dashboard */
.app-dashboard {
    position: relative;
    z-index: 10;
    padding: var(--space-m) var(--space-l);
    background: linear-gradient(180deg, transparent 0%, rgba(5, 5, 7, 0.95) 100%);
    width: 100%;
}

.dashboard-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-m);
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(13, 13, 17, 0.5);
    border: 1px solid var(--color-border-glass);
    border-radius: 30px;
    padding: 0.5rem var(--space-m);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.dashboard-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    transition: var(--transition-snappy);
}

.dashboard-btn:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.dashboard-btn.active {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-border-glass);
}

.btn-icon {
    font-size: var(--text-base);
    line-height: 1;
}

/* Active Highlight for Dashboard Elements */
.dashboard-btn.active .btn-icon {
    color: var(--color-accent-blue);
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
}

.cta-group {
    display: flex;
    align-items: center;
}

.cta-btn {
    background: var(--color-text-primary);
    color: var(--color-bg-deep);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.cta-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

.cta-btn:hover .cta-arrow {
    transform: translateX(3px);
}

.cta-arrow {
    transition: var(--transition-snappy);
    font-weight: bold;
}

/* 7. Glassmorphic Side Drawer (Our Thesis Panel) */
.thesis-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0s linear 0.4s;
}

.thesis-drawer[aria-hidden="false"] {
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}

/* Smooth Fade Overlay */
.drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(3, 3, 5, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.thesis-drawer[aria-hidden="false"] .drawer-overlay {
    opacity: 1;
}

/* Slide-in Sidebar Panel */
.drawer-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 480px;
    height: 100%;
    background: rgba(13, 13, 18, 0.85);
    border-left: 1px solid var(--color-border-glass);
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    box-shadow: -10px 0 50px rgba(0, 0, 0, 0.6);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
}

.thesis-drawer[aria-hidden="false"] .drawer-content {
    transform: translateX(0);
}

.close-drawer {
    position: absolute;
    top: var(--space-m);
    right: var(--space-m);
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    z-index: 10;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-snappy);
}

.close-drawer:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.drawer-inner {
    padding: var(--space-l);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-glass) transparent;
}

.drawer-header {
    margin-top: var(--space-m);
    margin-bottom: var(--space-l);
}

.drawer-category {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.5rem;
}

.drawer-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--color-text-primary);
}

.drawer-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-m);
    margin-bottom: var(--space-l);
}

.drawer-lead {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    line-height: 1.5;
    color: var(--color-text-primary);
    font-style: italic;
    border-left: 2px solid var(--color-text-muted);
    padding-left: var(--space-s);
}

.thesis-block h3 {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.thesis-block p {
    font-family: var(--font-serif);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.drawer-footer {
    border-top: 1px solid var(--color-border-glass);
    padding-top: var(--space-m);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact-prompt {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
}

.contact-sub {
    font-family: var(--font-serif);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.drawer-email-btn {
    font-family: var(--font-mono);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border-glass);
    border-radius: 12px;
    padding: 0.75rem var(--space-s);
    text-align: center;
    text-decoration: none;
    transition: var(--transition-smooth);
    margin: 0.5rem 0;
}

.drawer-email-btn:hover {
    background: var(--color-text-primary);
    color: var(--color-bg-deep);
    border-color: var(--color-text-primary);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.drawer-meta-info {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-muted);
    margin-top: var(--space-s);
}

/* 8. Fully Responsive Utilities & Media Queries */

/* Tablet & Portrait Handheld adjustments */
@media (max-width: 768px) {
    #physics-canvas {
        display: none; /* Hide canvas entirely to avoid browser compositing/rendering overhead on mobile */
    }

    .app-header {
        padding: var(--space-m);
    }
    
    #contact-btn {
        display: none; /* Hide on smaller screens to prioritize Thesis drawer button */
    }
    
    .brand-logo {
        height: 20px; /* Perfectly compact and premium on mobile screens */
    }
    
    .dictionary-card {
        padding: var(--space-m);
        border-radius: 20px;
    }
    
    .drawer-content {
        max-width: 100%; /* Take full screen width on mobile for visual comfort */
    }

    .control-group {
        display: none; /* Hide physics controls (Spawn, Gravity, Pause) on mobile as background animation is disabled */
    }

    .dashboard-controls {
        justify-content: center; /* Center the Enter Portal CTA button for a balanced, premium look on mobile */
        padding: 0.5rem;
        border-radius: 24px;
    }
}

/* Landscape Phone Layout tweaks */
@media (orientation: landscape) and (max-height: 500px) {
    body {
        justify-content: flex-start;
    }
    
    .centerpiece-container {
        padding-top: var(--space-s);
        padding-bottom: var(--space-s);
    }
    
    .dictionary-card {
        margin-bottom: var(--space-s);
        padding: var(--space-s);
    }
    
    .card-divider, .dictionary-footnote, .definition-section {
        margin: var(--space-xs) 0;
    }
}

/* Safe area handling for modern iPhones / notched devices */
@supports (padding: env(safe-area-inset-top)) {
    .app-header {
        padding-top: calc(var(--space-m) + env(safe-area-inset-top));
        padding-left: calc(var(--space-l) + env(safe-area-inset-left));
        padding-right: calc(var(--space-l) + env(safe-area-inset-right));
    }
    
    .app-dashboard {
        padding-bottom: calc(var(--space-m) + env(safe-area-inset-bottom));
        padding-left: calc(var(--space-l) + env(safe-area-inset-left));
        padding-right: calc(var(--space-l) + env(safe-area-inset-right));
    }
}