/* ========================================
   THE GEEK NETWORK - DESIGN SYSTEM
   Glassmorphic iOS-Inspired Design Language
   Version 2.0

   Primary: #2980b9 (TGN Blue)
   Font: Comfortaa
   Theme: Light with glassmorphic effects
======================================== */

/* ========================================
   FONTS - Comfortaa Typography
======================================== */
@import url('https://fonts.googleapis.com/css2?family=Comfortaa:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

/* ========================================
   CSS CUSTOM PROPERTIES - DESIGN TOKENS
======================================== */
:root {
    /* ===== Typography ===== */
    --tgn-font-primary: 'Comfortaa', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
    --tgn-font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --tgn-font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    /* Font Weights */
    --tgn-font-light: 300;
    --tgn-font-regular: 400;
    --tgn-font-medium: 500;
    --tgn-font-semibold: 600;
    --tgn-font-bold: 700;

    /* Font Sizes - Fluid Typography */
    --tgn-text-xs: clamp(0.69rem, 0.66rem + 0.18vw, 0.78rem);
    --tgn-text-sm: clamp(0.83rem, 0.78rem + 0.29vw, 1rem);
    --tgn-text-base: clamp(1rem, 0.91rem + 0.43vw, 1.25rem);
    --tgn-text-lg: clamp(1.2rem, 1.07rem + 0.63vw, 1.56rem);
    --tgn-text-xl: clamp(1.44rem, 1.26rem + 0.89vw, 1.95rem);
    --tgn-text-2xl: clamp(1.73rem, 1.48rem + 1.24vw, 2.44rem);
    --tgn-text-3xl: clamp(2.07rem, 1.73rem + 1.7vw, 3.05rem);
    --tgn-text-4xl: clamp(2.49rem, 2.03rem + 2.31vw, 3.82rem);

    /* Line Heights */
    --tgn-leading-none: 1;
    --tgn-leading-tight: 1.2;
    --tgn-leading-snug: 1.375;
    --tgn-leading-normal: 1.5;
    --tgn-leading-relaxed: 1.625;

    /* Letter Spacing */
    --tgn-tracking-tighter: -0.05em;
    --tgn-tracking-tight: -0.025em;
    --tgn-tracking-normal: 0;
    --tgn-tracking-wide: 0.025em;
    --tgn-tracking-wider: 0.05em;

    /* ===== TGN Brand Colors ===== */
    --tgn-primary: #2980b9;
    --tgn-primary-rgb: 41, 128, 185;
    --tgn-primary-light: #3498db;
    --tgn-primary-dark: #1a5276;
    --tgn-primary-darker: #154360;

    /* Secondary Brand */
    --tgn-secondary: #2c3e50;
    --tgn-secondary-rgb: 44, 62, 80;
    --tgn-secondary-light: #34495e;

    /* ===== Light Theme Colors (Default) ===== */
    --tgn-bg-primary: #f5f7fa;
    --tgn-bg-secondary: #ffffff;
    --tgn-bg-tertiary: #fafbfc;
    --tgn-bg-elevated: #ffffff;
    --tgn-bg-sunken: #eef2f7;

    /* Glass Effects - Light */
    --tgn-glass-bg: rgba(255, 255, 255, 0.72);
    --tgn-glass-bg-strong: rgba(255, 255, 255, 0.88);
    --tgn-glass-bg-subtle: rgba(255, 255, 255, 0.45);
    --tgn-glass-border: rgba(255, 255, 255, 0.6);
    --tgn-glass-border-subtle: rgba(255, 255, 255, 0.25);
    --tgn-glass-shadow: rgba(41, 128, 185, 0.08);

    /* Text Colors - Light */
    --tgn-text-primary: #2c3e50;
    --tgn-text-secondary: #5d6d7e;
    --tgn-text-tertiary: #85929e;
    --tgn-text-quaternary: #aeb6bf;
    --tgn-text-inverse: #ffffff;
    --tgn-text-link: #2980b9;
    --tgn-text-link-hover: #3498db;

    /* Accent Colors */
    --tgn-accent-blue: #2980b9;
    --tgn-accent-blue-rgb: 41, 128, 185;
    --tgn-accent-green: #27ae60;
    --tgn-accent-green-rgb: 39, 174, 96;
    --tgn-accent-orange: #e67e22;
    --tgn-accent-orange-rgb: 230, 126, 34;
    --tgn-accent-red: #e74c3c;
    --tgn-accent-red-rgb: 231, 76, 60;
    --tgn-accent-purple: #9b59b6;
    --tgn-accent-purple-rgb: 155, 89, 182;
    --tgn-accent-pink: #e91e63;
    --tgn-accent-pink-rgb: 233, 30, 99;
    --tgn-accent-teal: #1abc9c;
    --tgn-accent-teal-rgb: 26, 188, 156;
    --tgn-accent-yellow: #f1c40f;
    --tgn-accent-yellow-rgb: 241, 196, 15;

    /* Semantic Colors */
    --tgn-success: var(--tgn-accent-green);
    --tgn-success-rgb: var(--tgn-accent-green-rgb);
    --tgn-warning: var(--tgn-accent-orange);
    --tgn-warning-rgb: var(--tgn-accent-orange-rgb);
    --tgn-danger: var(--tgn-accent-red);
    --tgn-danger-rgb: var(--tgn-accent-red-rgb);
    --tgn-info: var(--tgn-accent-blue);
    --tgn-info-rgb: var(--tgn-accent-blue-rgb);

    /* Panik Emergency Red (Exception - Safety Critical) */
    --tgn-emergency: #c0392b;
    --tgn-emergency-rgb: 192, 57, 43;
    --tgn-emergency-light: #e74c3c;

    /* Borders */
    --tgn-border-color: rgba(44, 62, 80, 0.08);
    --tgn-border-color-strong: rgba(44, 62, 80, 0.12);
    --tgn-border-color-hover: rgba(44, 62, 80, 0.18);
    --tgn-border-focus: var(--tgn-primary);

    /* Shadows - Soft iOS-Style */
    --tgn-shadow-xs: 0 1px 2px rgba(44, 62, 80, 0.04);
    --tgn-shadow-sm: 0 2px 8px rgba(44, 62, 80, 0.06), 0 1px 2px rgba(44, 62, 80, 0.04);
    --tgn-shadow-md: 0 4px 16px rgba(44, 62, 80, 0.08), 0 2px 4px rgba(44, 62, 80, 0.04);
    --tgn-shadow-lg: 0 8px 32px rgba(44, 62, 80, 0.10), 0 4px 8px rgba(44, 62, 80, 0.04);
    --tgn-shadow-xl: 0 16px 48px rgba(44, 62, 80, 0.12), 0 8px 16px rgba(44, 62, 80, 0.06);
    --tgn-shadow-2xl: 0 24px 64px rgba(44, 62, 80, 0.14), 0 12px 24px rgba(44, 62, 80, 0.08);

    /* Glow Effects */
    --tgn-glow-primary: 0 0 40px rgba(var(--tgn-primary-rgb), 0.25);
    --tgn-glow-success: 0 0 40px rgba(var(--tgn-accent-green-rgb), 0.25);
    --tgn-glow-danger: 0 0 40px rgba(var(--tgn-accent-red-rgb), 0.25);

    /* ===== Spacing Scale ===== */
    --tgn-space-0: 0;
    --tgn-space-1: 0.25rem;   /* 4px */
    --tgn-space-2: 0.5rem;    /* 8px */
    --tgn-space-3: 0.75rem;   /* 12px */
    --tgn-space-4: 1rem;      /* 16px */
    --tgn-space-5: 1.25rem;   /* 20px */
    --tgn-space-6: 1.5rem;    /* 24px */
    --tgn-space-8: 2rem;      /* 32px */
    --tgn-space-10: 2.5rem;   /* 40px */
    --tgn-space-12: 3rem;     /* 48px */
    --tgn-space-16: 4rem;     /* 64px */
    --tgn-space-20: 5rem;     /* 80px */
    --tgn-space-24: 6rem;     /* 96px */

    /* ===== Border Radius - iOS Style ===== */
    --tgn-radius-none: 0;
    --tgn-radius-sm: 8px;
    --tgn-radius-md: 12px;
    --tgn-radius-lg: 16px;
    --tgn-radius-xl: 20px;
    --tgn-radius-2xl: 24px;
    --tgn-radius-3xl: 32px;
    --tgn-radius-full: 9999px;

    /* ===== Blur Values ===== */
    --tgn-blur-sm: 8px;
    --tgn-blur-md: 16px;
    --tgn-blur-lg: 24px;
    --tgn-blur-xl: 40px;
    --tgn-blur-2xl: 64px;

    /* ===== Transitions - Smooth iOS-Style ===== */
    --tgn-ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --tgn-ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --tgn-ease-in-out-quad: cubic-bezier(0.45, 0, 0.55, 1);
    --tgn-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --tgn-ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    --tgn-duration-instant: 0.1s;
    --tgn-duration-fast: 0.15s;
    --tgn-duration-normal: 0.25s;
    --tgn-duration-slow: 0.4s;
    --tgn-duration-slower: 0.6s;

    --tgn-transition-fast: var(--tgn-duration-fast) var(--tgn-ease-out-expo);
    --tgn-transition-normal: var(--tgn-duration-normal) var(--tgn-ease-out-expo);
    --tgn-transition-slow: var(--tgn-duration-slow) var(--tgn-ease-out-expo);
    --tgn-transition-spring: var(--tgn-duration-normal) var(--tgn-ease-spring);

    /* ===== Z-Index Scale ===== */
    --tgn-z-base: 0;
    --tgn-z-raised: 10;
    --tgn-z-dropdown: 100;
    --tgn-z-sticky: 200;
    --tgn-z-overlay: 300;
    --tgn-z-modal: 400;
    --tgn-z-popover: 500;
    --tgn-z-toast: 600;
    --tgn-z-tooltip: 700;
    --tgn-z-emergency: 9999;

    /* ===== Container Widths ===== */
    --tgn-container-sm: 640px;
    --tgn-container-md: 768px;
    --tgn-container-lg: 1024px;
    --tgn-container-xl: 1280px;
    --tgn-container-2xl: 1536px;

    /* ===== Safe Area (Mobile) ===== */
    --tgn-safe-top: env(safe-area-inset-top);
    --tgn-safe-bottom: env(safe-area-inset-bottom);
    --tgn-safe-left: env(safe-area-inset-left);
    --tgn-safe-right: env(safe-area-inset-right);
}

/* ========================================
   DARK THEME (Future - Placeholder)
======================================== */
[data-theme="dark"],
.tgn-dark {
    --tgn-bg-primary: #0a0a0f;
    --tgn-bg-secondary: #1a1a24;
    --tgn-bg-tertiary: #252532;
    --tgn-bg-elevated: #1a1a24;
    --tgn-bg-sunken: #050508;

    --tgn-glass-bg: rgba(26, 26, 36, 0.75);
    --tgn-glass-bg-strong: rgba(37, 37, 50, 0.88);
    --tgn-glass-bg-subtle: rgba(26, 26, 36, 0.45);
    --tgn-glass-border: rgba(255, 255, 255, 0.1);
    --tgn-glass-border-subtle: rgba(255, 255, 255, 0.05);

    --tgn-text-primary: #f5f7fa;
    --tgn-text-secondary: #a1a8b4;
    --tgn-text-tertiary: #6c7686;
    --tgn-text-quaternary: #454d5c;
    --tgn-text-inverse: #1a1a24;
    --tgn-text-link: #3498db;
    --tgn-text-link-hover: #5dade2;

    --tgn-border-color: rgba(255, 255, 255, 0.08);
    --tgn-border-color-strong: rgba(255, 255, 255, 0.12);
    --tgn-border-color-hover: rgba(255, 255, 255, 0.18);

    --tgn-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --tgn-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --tgn-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    --tgn-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.7);

    --tgn-glow-primary: 0 0 60px rgba(var(--tgn-primary-rgb), 0.35);
}

/* ========================================
   BASE STYLES
======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
}

body {
    font-family: var(--tgn-font-primary);
    font-weight: var(--tgn-font-regular);
    line-height: var(--tgn-leading-normal);
    color: var(--tgn-text-primary);
    background-color: var(--tgn-bg-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    transition: background-color var(--tgn-transition-slow), color var(--tgn-transition-slow);
}

/* ========================================
   TYPOGRAPHY SYSTEM
======================================== */
.tgn-display {
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-4xl);
    font-weight: var(--tgn-font-bold);
    line-height: var(--tgn-leading-tight);
    letter-spacing: var(--tgn-tracking-tight);
    color: var(--tgn-text-primary);
}

.tgn-headline {
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-3xl);
    font-weight: var(--tgn-font-semibold);
    line-height: var(--tgn-leading-tight);
    letter-spacing: var(--tgn-tracking-tight);
    color: var(--tgn-text-primary);
}

.tgn-title-1 {
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-2xl);
    font-weight: var(--tgn-font-semibold);
    line-height: var(--tgn-leading-snug);
    color: var(--tgn-text-primary);
}

.tgn-title-2 {
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-xl);
    font-weight: var(--tgn-font-semibold);
    line-height: var(--tgn-leading-snug);
    color: var(--tgn-text-primary);
}

.tgn-title-3 {
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-lg);
    font-weight: var(--tgn-font-medium);
    line-height: var(--tgn-leading-snug);
    color: var(--tgn-text-primary);
}

.tgn-body {
    font-family: var(--tgn-font-secondary);
    font-size: var(--tgn-text-base);
    font-weight: var(--tgn-font-regular);
    line-height: var(--tgn-leading-normal);
    color: var(--tgn-text-primary);
}

.tgn-body-emphasis {
    font-family: var(--tgn-font-secondary);
    font-size: var(--tgn-text-base);
    font-weight: var(--tgn-font-medium);
    line-height: var(--tgn-leading-normal);
    color: var(--tgn-text-primary);
}

.tgn-caption {
    font-family: var(--tgn-font-secondary);
    font-size: var(--tgn-text-sm);
    font-weight: var(--tgn-font-regular);
    line-height: var(--tgn-leading-normal);
    color: var(--tgn-text-secondary);
}

.tgn-overline {
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-xs);
    font-weight: var(--tgn-font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tgn-tracking-wider);
    color: var(--tgn-text-tertiary);
}

/* ========================================
   GLASSMORPHISM COMPONENTS
======================================== */

/* Glass Panel - Base */
.tgn-glass {
    background: var(--tgn-glass-bg);
    backdrop-filter: blur(var(--tgn-blur-lg)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--tgn-blur-lg)) saturate(180%);
    border: 1px solid var(--tgn-glass-border);
    border-radius: var(--tgn-radius-xl);
}

.tgn-glass-subtle {
    background: var(--tgn-glass-bg-subtle);
    backdrop-filter: blur(var(--tgn-blur-md));
    -webkit-backdrop-filter: blur(var(--tgn-blur-md));
    border: 1px solid var(--tgn-glass-border-subtle);
    border-radius: var(--tgn-radius-lg);
}

.tgn-glass-strong {
    background: var(--tgn-glass-bg-strong);
    backdrop-filter: blur(var(--tgn-blur-xl)) saturate(200%);
    -webkit-backdrop-filter: blur(var(--tgn-blur-xl)) saturate(200%);
    border: 1px solid var(--tgn-glass-border);
    border-radius: var(--tgn-radius-xl);
}

/* Glass Card */
.tgn-glass-card {
    background: var(--tgn-glass-bg);
    backdrop-filter: blur(var(--tgn-blur-lg)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--tgn-blur-lg)) saturate(180%);
    border: 1px solid var(--tgn-glass-border);
    border-radius: var(--tgn-radius-2xl);
    box-shadow: var(--tgn-shadow-md);
    transition: transform var(--tgn-transition-normal),
                box-shadow var(--tgn-transition-normal),
                border-color var(--tgn-transition-fast);
}

.tgn-glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--tgn-shadow-xl);
    border-color: rgba(var(--tgn-primary-rgb), 0.2);
}

/* Glass Navigation Bar */
.tgn-glass-nav {
    background: var(--tgn-glass-bg-strong);
    backdrop-filter: blur(var(--tgn-blur-xl)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--tgn-blur-xl)) saturate(180%);
    border-bottom: 1px solid var(--tgn-border-color);
    position: sticky;
    top: 0;
    z-index: var(--tgn-z-sticky);
}

/* Glass Tab Bar (iOS-style bottom nav) */
.tgn-glass-tabbar {
    background: var(--tgn-glass-bg-strong);
    backdrop-filter: blur(var(--tgn-blur-xl)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--tgn-blur-xl)) saturate(180%);
    border-top: 1px solid var(--tgn-border-color);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--tgn-z-sticky);
    padding-bottom: var(--tgn-safe-bottom);
}

/* ========================================
   BUTTON SYSTEM
======================================== */
.tgn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tgn-space-2);
    padding: var(--tgn-space-3) var(--tgn-space-6);
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-sm);
    font-weight: var(--tgn-font-semibold);
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--tgn-radius-full);
    cursor: pointer;
    transition: all var(--tgn-transition-fast);
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.tgn-btn:focus-visible {
    outline: 2px solid var(--tgn-primary);
    outline-offset: 2px;
}

.tgn-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Primary Button */
.tgn-btn-primary {
    background: linear-gradient(135deg, var(--tgn-primary) 0%, var(--tgn-primary-dark) 100%);
    color: var(--tgn-text-inverse);
    box-shadow: var(--tgn-shadow-sm), 0 0 0 0 rgba(var(--tgn-primary-rgb), 0);
}

.tgn-btn-primary:hover {
    background: linear-gradient(135deg, var(--tgn-primary-light) 0%, var(--tgn-primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--tgn-shadow-md), var(--tgn-glow-primary);
}

.tgn-btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--tgn-shadow-xs);
}

/* Secondary Button (Glass) */
.tgn-btn-secondary {
    background: var(--tgn-glass-bg);
    backdrop-filter: blur(var(--tgn-blur-md));
    -webkit-backdrop-filter: blur(var(--tgn-blur-md));
    color: var(--tgn-text-primary);
    border: 1px solid var(--tgn-border-color-strong);
}

.tgn-btn-secondary:hover {
    background: var(--tgn-glass-bg-strong);
    border-color: var(--tgn-primary);
    color: var(--tgn-primary);
    transform: translateY(-1px);
    box-shadow: var(--tgn-shadow-md);
}

/* Ghost Button */
.tgn-btn-ghost {
    background: transparent;
    color: var(--tgn-primary);
}

.tgn-btn-ghost:hover {
    background: rgba(var(--tgn-primary-rgb), 0.1);
}

/* Danger Button (for Panik/Emergency) */
.tgn-btn-danger {
    background: linear-gradient(135deg, var(--tgn-danger) 0%, var(--tgn-emergency) 100%);
    color: var(--tgn-text-inverse);
    box-shadow: var(--tgn-shadow-sm);
}

.tgn-btn-danger:hover {
    background: linear-gradient(135deg, var(--tgn-emergency-light) 0%, var(--tgn-danger) 100%);
    transform: translateY(-2px);
    box-shadow: var(--tgn-shadow-md), var(--tgn-glow-danger);
}

/* Success Button */
.tgn-btn-success {
    background: linear-gradient(135deg, var(--tgn-success) 0%, #1e8449 100%);
    color: var(--tgn-text-inverse);
    box-shadow: var(--tgn-shadow-sm);
}

.tgn-btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--tgn-shadow-md), var(--tgn-glow-success);
}

/* Button Sizes */
.tgn-btn-sm {
    padding: var(--tgn-space-2) var(--tgn-space-4);
    font-size: var(--tgn-text-xs);
}

.tgn-btn-lg {
    padding: var(--tgn-space-4) var(--tgn-space-8);
    font-size: var(--tgn-text-base);
}

.tgn-btn-xl {
    padding: var(--tgn-space-5) var(--tgn-space-10);
    font-size: var(--tgn-text-lg);
}

.tgn-btn-icon {
    padding: var(--tgn-space-3);
    border-radius: var(--tgn-radius-full);
}

.tgn-btn-block {
    width: 100%;
}

/* ========================================
   CARD SYSTEM
======================================== */
.tgn-card {
    background: var(--tgn-bg-secondary);
    border-radius: var(--tgn-radius-2xl);
    border: 1px solid var(--tgn-border-color);
    overflow: hidden;
    transition: all var(--tgn-transition-normal);
}

.tgn-card:hover {
    border-color: var(--tgn-border-color-strong);
    box-shadow: var(--tgn-shadow-lg);
}

.tgn-card-elevated {
    background: var(--tgn-bg-elevated);
    border-radius: var(--tgn-radius-2xl);
    box-shadow: var(--tgn-shadow-lg);
    border: none;
    transition: all var(--tgn-transition-normal);
}

.tgn-card-elevated:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: var(--tgn-shadow-2xl);
}

.tgn-card-interactive {
    cursor: pointer;
}

.tgn-card-interactive:active {
    transform: scale(0.98);
}

/* Card Sections */
.tgn-card-header {
    padding: var(--tgn-space-4) var(--tgn-space-5);
    border-bottom: 1px solid var(--tgn-border-color);
}

.tgn-card-body {
    padding: var(--tgn-space-5);
}

.tgn-card-footer {
    padding: var(--tgn-space-4) var(--tgn-space-5);
    border-top: 1px solid var(--tgn-border-color);
    background: var(--tgn-bg-tertiary);
}

/* ========================================
   INPUT SYSTEM
======================================== */
.tgn-input {
    width: 100%;
    padding: var(--tgn-space-3) var(--tgn-space-4);
    font-family: var(--tgn-font-secondary);
    font-size: var(--tgn-text-base);
    color: var(--tgn-text-primary);
    background: var(--tgn-bg-secondary);
    border: 1px solid var(--tgn-border-color-strong);
    border-radius: var(--tgn-radius-lg);
    transition: all var(--tgn-transition-fast);
}

.tgn-input::placeholder {
    color: var(--tgn-text-tertiary);
}

.tgn-input:focus {
    outline: none;
    border-color: var(--tgn-primary);
    box-shadow: 0 0 0 3px rgba(var(--tgn-primary-rgb), 0.15);
}

.tgn-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--tgn-bg-tertiary);
}

.tgn-input-glass {
    background: var(--tgn-glass-bg);
    backdrop-filter: blur(var(--tgn-blur-md));
    -webkit-backdrop-filter: blur(var(--tgn-blur-md));
    border: 1px solid var(--tgn-glass-border);
}

/* Input with Icon */
.tgn-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.tgn-input-icon {
    position: absolute;
    left: var(--tgn-space-4);
    color: var(--tgn-text-tertiary);
    pointer-events: none;
}

.tgn-input-group .tgn-input {
    padding-left: var(--tgn-space-10);
}

/* ========================================
   BADGE SYSTEM
======================================== */
.tgn-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--tgn-space-1) var(--tgn-space-3);
    font-family: var(--tgn-font-primary);
    font-size: var(--tgn-text-xs);
    font-weight: var(--tgn-font-semibold);
    border-radius: var(--tgn-radius-full);
    white-space: nowrap;
}

.tgn-badge-primary {
    background: rgba(var(--tgn-primary-rgb), 0.15);
    color: var(--tgn-primary);
}

.tgn-badge-success {
    background: rgba(var(--tgn-accent-green-rgb), 0.15);
    color: var(--tgn-accent-green);
}

.tgn-badge-warning {
    background: rgba(var(--tgn-accent-orange-rgb), 0.15);
    color: var(--tgn-accent-orange);
}

.tgn-badge-danger {
    background: rgba(var(--tgn-accent-red-rgb), 0.15);
    color: var(--tgn-accent-red);
}

.tgn-badge-info {
    background: rgba(var(--tgn-accent-teal-rgb), 0.15);
    color: var(--tgn-accent-teal);
}

/* Notification Badge (for icons) */
.tgn-badge-dot {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 12px;
    height: 12px;
    background: var(--tgn-danger);
    border: 2px solid var(--tgn-bg-secondary);
    border-radius: var(--tgn-radius-full);
}

.tgn-badge-count {
    position: absolute;
    top: -8px;
    right: -8px;
    min-width: 20px;
    height: 20px;
    padding: 0 var(--tgn-space-1);
    background: var(--tgn-danger);
    color: var(--tgn-text-inverse);
    font-size: 11px;
    font-weight: var(--tgn-font-bold);
    border: 2px solid var(--tgn-bg-secondary);
    border-radius: var(--tgn-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
   AVATAR SYSTEM
======================================== */
.tgn-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--tgn-radius-full);
    background: linear-gradient(135deg, var(--tgn-primary) 0%, var(--tgn-primary-dark) 100%);
    color: var(--tgn-text-inverse);
    font-family: var(--tgn-font-primary);
    font-weight: var(--tgn-font-semibold);
    overflow: hidden;
}

.tgn-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tgn-avatar-sm { width: 32px; height: 32px; font-size: 12px; }
.tgn-avatar-md { width: 40px; height: 40px; font-size: 14px; }
.tgn-avatar-lg { width: 56px; height: 56px; font-size: 18px; }
.tgn-avatar-xl { width: 80px; height: 80px; font-size: 24px; }
.tgn-avatar-2xl { width: 120px; height: 120px; font-size: 36px; }

/* ========================================
   LIST SYSTEM
======================================== */
.tgn-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tgn-list-item {
    display: flex;
    align-items: center;
    gap: var(--tgn-space-3);
    padding: var(--tgn-space-4);
    border-bottom: 1px solid var(--tgn-border-color);
    transition: background-color var(--tgn-transition-fast);
}

.tgn-list-item:last-child {
    border-bottom: none;
}

.tgn-list-item-interactive {
    cursor: pointer;
}

.tgn-list-item-interactive:hover {
    background: var(--tgn-bg-tertiary);
}

.tgn-list-item-interactive:active {
    background: var(--tgn-bg-sunken);
}

/* ========================================
   DIVIDER
======================================== */
.tgn-divider {
    height: 1px;
    background: var(--tgn-border-color);
    border: none;
    margin: var(--tgn-space-4) 0;
}

.tgn-divider-thick {
    height: 8px;
    background: var(--tgn-bg-sunken);
}

/* ========================================
   ANIMATIONS
======================================== */
@keyframes tgn-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes tgn-fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes tgn-fade-in-down {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes tgn-scale-in {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes tgn-slide-in-right {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes tgn-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes tgn-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes tgn-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes tgn-spin {
    to { transform: rotate(360deg); }
}

@keyframes tgn-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.tgn-animate-fade-in { animation: tgn-fade-in var(--tgn-duration-normal) var(--tgn-ease-out-expo); }
.tgn-animate-fade-in-up { animation: tgn-fade-in-up var(--tgn-duration-slow) var(--tgn-ease-out-expo); }
.tgn-animate-fade-in-down { animation: tgn-fade-in-down var(--tgn-duration-slow) var(--tgn-ease-out-expo); }
.tgn-animate-scale-in { animation: tgn-scale-in var(--tgn-duration-normal) var(--tgn-ease-spring); }
.tgn-animate-slide-in-right { animation: tgn-slide-in-right var(--tgn-duration-slow) var(--tgn-ease-out-expo); }
.tgn-animate-bounce { animation: tgn-bounce 2s ease-in-out infinite; }
.tgn-animate-pulse { animation: tgn-pulse 2s ease-in-out infinite; }
.tgn-animate-spin { animation: tgn-spin 1s linear infinite; }
.tgn-animate-shake { animation: tgn-shake 0.5s ease-in-out; }

/* Skeleton Loading */
.tgn-skeleton {
    background: linear-gradient(
        90deg,
        var(--tgn-bg-tertiary) 25%,
        var(--tgn-bg-secondary) 50%,
        var(--tgn-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: tgn-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--tgn-radius-md);
}

/* ========================================
   LAYOUT UTILITIES
======================================== */

/* Container */
.tgn-container {
    width: 100%;
    max-width: var(--tgn-container-xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--tgn-space-4);
    padding-right: var(--tgn-space-4);
}

@media (min-width: 640px) {
    .tgn-container {
        padding-left: var(--tgn-space-6);
        padding-right: var(--tgn-space-6);
    }
}

@media (min-width: 1024px) {
    .tgn-container {
        padding-left: var(--tgn-space-8);
        padding-right: var(--tgn-space-8);
    }
}

/* Page Layout with Safe Areas */
.tgn-page {
    min-height: 100vh;
    padding-top: var(--tgn-safe-top);
    padding-bottom: calc(var(--tgn-safe-bottom) + 80px); /* Account for tab bar */
}

/* Flex */
.tgn-flex { display: flex; }
.tgn-flex-col { flex-direction: column; }
.tgn-flex-wrap { flex-wrap: wrap; }
.tgn-items-center { align-items: center; }
.tgn-items-start { align-items: flex-start; }
.tgn-items-end { align-items: flex-end; }
.tgn-justify-center { justify-content: center; }
.tgn-justify-between { justify-content: space-between; }
.tgn-justify-end { justify-content: flex-end; }
.tgn-flex-1 { flex: 1; }
.tgn-flex-shrink-0 { flex-shrink: 0; }

/* Gap */
.tgn-gap-1 { gap: var(--tgn-space-1); }
.tgn-gap-2 { gap: var(--tgn-space-2); }
.tgn-gap-3 { gap: var(--tgn-space-3); }
.tgn-gap-4 { gap: var(--tgn-space-4); }
.tgn-gap-5 { gap: var(--tgn-space-5); }
.tgn-gap-6 { gap: var(--tgn-space-6); }
.tgn-gap-8 { gap: var(--tgn-space-8); }

/* Grid */
.tgn-grid { display: grid; }
.tgn-grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.tgn-grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.tgn-grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Spacing */
.tgn-p-0 { padding: var(--tgn-space-0); }
.tgn-p-2 { padding: var(--tgn-space-2); }
.tgn-p-3 { padding: var(--tgn-space-3); }
.tgn-p-4 { padding: var(--tgn-space-4); }
.tgn-p-5 { padding: var(--tgn-space-5); }
.tgn-p-6 { padding: var(--tgn-space-6); }
.tgn-p-8 { padding: var(--tgn-space-8); }

.tgn-px-4 { padding-left: var(--tgn-space-4); padding-right: var(--tgn-space-4); }
.tgn-py-4 { padding-top: var(--tgn-space-4); padding-bottom: var(--tgn-space-4); }

.tgn-m-0 { margin: var(--tgn-space-0); }
.tgn-m-auto { margin: auto; }
.tgn-mt-2 { margin-top: var(--tgn-space-2); }
.tgn-mt-4 { margin-top: var(--tgn-space-4); }
.tgn-mt-6 { margin-top: var(--tgn-space-6); }
.tgn-mt-8 { margin-top: var(--tgn-space-8); }
.tgn-mb-2 { margin-bottom: var(--tgn-space-2); }
.tgn-mb-4 { margin-bottom: var(--tgn-space-4); }
.tgn-mb-6 { margin-bottom: var(--tgn-space-6); }
.tgn-mb-8 { margin-bottom: var(--tgn-space-8); }

/* Width/Height */
.tgn-w-full { width: 100%; }
.tgn-h-full { height: 100%; }
.tgn-min-h-screen { min-height: 100vh; }

/* Border Radius */
.tgn-rounded { border-radius: var(--tgn-radius-md); }
.tgn-rounded-lg { border-radius: var(--tgn-radius-lg); }
.tgn-rounded-xl { border-radius: var(--tgn-radius-xl); }
.tgn-rounded-2xl { border-radius: var(--tgn-radius-2xl); }
.tgn-rounded-full { border-radius: var(--tgn-radius-full); }

/* Shadows */
.tgn-shadow-sm { box-shadow: var(--tgn-shadow-sm); }
.tgn-shadow-md { box-shadow: var(--tgn-shadow-md); }
.tgn-shadow-lg { box-shadow: var(--tgn-shadow-lg); }
.tgn-shadow-xl { box-shadow: var(--tgn-shadow-xl); }

/* Text */
.tgn-text-center { text-align: center; }
.tgn-text-left { text-align: left; }
.tgn-text-right { text-align: right; }
.tgn-text-primary { color: var(--tgn-text-primary); }
.tgn-text-secondary { color: var(--tgn-text-secondary); }
.tgn-text-muted { color: var(--tgn-text-tertiary); }
.tgn-text-brand { color: var(--tgn-primary); }
.tgn-text-success { color: var(--tgn-success); }
.tgn-text-danger { color: var(--tgn-danger); }
.tgn-text-warning { color: var(--tgn-warning); }

.tgn-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tgn-line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Position */
.tgn-relative { position: relative; }
.tgn-absolute { position: absolute; }
.tgn-fixed { position: fixed; }
.tgn-sticky { position: sticky; }

/* Overflow */
.tgn-overflow-hidden { overflow: hidden; }
.tgn-overflow-auto { overflow: auto; }
.tgn-overflow-x-auto { overflow-x: auto; }
.tgn-overflow-y-auto { overflow-y: auto; }

/* Visibility */
.tgn-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.tgn-hidden { display: none; }

/* ========================================
   SCROLLBAR STYLING
======================================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--tgn-text-quaternary);
    border-radius: var(--tgn-radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--tgn-text-tertiary);
}

.tgn-scrollbar-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.tgn-scrollbar-hide::-webkit-scrollbar {
    display: none;
}

/* ========================================
   FOCUS & ACCESSIBILITY
======================================== */
:focus-visible {
    outline: 2px solid var(--tgn-primary);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========================================
   MOBILE-SPECIFIC
======================================== */
@media (max-width: 639px) {
    .tgn-mobile-hidden { display: none; }
    .tgn-mobile-full { width: 100%; }

    .tgn-btn-mobile-full {
        width: 100%;
        justify-content: center;
    }
}

@media (min-width: 640px) {
    .tgn-desktop-hidden { display: none; }
}

/* ========================================
   TGN QUAD MODULE INDICATORS
   (Wallet, Messaging, Safety, Verification)
======================================== */
.tgn-quad-wallet { --tgn-quad-color: var(--tgn-primary); }
.tgn-quad-messaging { --tgn-quad-color: var(--tgn-accent-purple); }
.tgn-quad-safety { --tgn-quad-color: var(--tgn-emergency); }
.tgn-quad-verification { --tgn-quad-color: var(--tgn-accent-teal); }

.tgn-quad-indicator {
    width: 8px;
    height: 8px;
    border-radius: var(--tgn-radius-full);
    background: var(--tgn-quad-color);
}

/* ========================================
   EMERGENCY/PANIK SPECIFIC STYLES
======================================== */
.tgn-emergency-btn {
    background: linear-gradient(135deg, var(--tgn-emergency-light) 0%, var(--tgn-emergency) 100%);
    color: var(--tgn-text-inverse);
    font-size: var(--tgn-text-xl);
    font-weight: var(--tgn-font-bold);
    padding: var(--tgn-space-8);
    border-radius: var(--tgn-radius-full);
    box-shadow: var(--tgn-shadow-lg), 0 0 30px rgba(var(--tgn-emergency-rgb), 0.4);
    animation: tgn-pulse 2s ease-in-out infinite;
}

.tgn-emergency-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--tgn-shadow-xl), 0 0 50px rgba(var(--tgn-emergency-rgb), 0.5);
}

.tgn-emergency-btn:active {
    transform: scale(0.98);
}