/* =====================================================
   iOS 26 Liquid Glass Design System
   Self-Healing App - Unified Styling
   ===================================================== */

/* ===== CSS Variables ===== */
:root {
    /* Brand Colors */
    --color-forest: #163300;
    --color-forest-light: #1e4400;
    --color-forest-dark: #0f2200;
    --color-lime: #9FE870;
    --color-lime-dim: rgba(159, 232, 112, 0.15);
    --color-orange: #FF8A5B;
    --color-pink: #FF6B9D;
    --color-yellow: #FFEB69;
    --color-blue: #5BC0EB;
    --color-violet: #9B5DE5;

    /* Semantic Colors */
    --color-success: var(--color-lime);
    --color-warning: var(--color-orange);
    --color-error: #FF4D4D;
    --color-info: var(--color-blue);

    /* Text Colors */
    --text-primary: #fff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --text-hint: rgba(255, 255, 255, 0.35);
    --text-on-light: var(--color-forest);

    /* Typography */
    --font-display: 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing Scale */
    --spacing-2xs: 4px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;

    /* Border Radius */
    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.25);
    --shadow-glow-lime: 0 0 20px rgba(159, 232, 112, 0.3);
    --shadow-glow-orange: 0 0 20px rgba(255, 138, 91, 0.3);

    /* Layout */
    --nav-height: 72px;
    --header-height: 64px;
    --max-width-mobile: 480px;
    --max-width-tablet: 720px;
    --max-width-desktop: 900px;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--color-forest);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
    min-height: 100dvh;
}

/* ===== Background Effects ===== */
.lg-background {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.lg-glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.lg-glow-orb--lime {
    width: 300px;
    height: 300px;
    background: var(--color-lime);
    top: -100px;
    right: -100px;
    opacity: 0.2;
}

.lg-glow-orb--orange {
    width: 250px;
    height: 250px;
    background: var(--color-orange);
    bottom: 20%;
    left: -80px;
    opacity: 0.15;
}

.lg-glow-orb--yellow {
    width: 200px;
    height: 200px;
    background: var(--color-yellow);
    top: 40%;
    right: -60px;
    opacity: 0.12;
}

/* Grain texture overlay */
.lg-grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ===== Layout Containers ===== */
.lg-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    min-height: 100dvh;
    max-width: var(--max-width-mobile);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    padding-bottom: calc(var(--nav-height) + var(--spacing-lg));
}

.lg-container--centered {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.lg-container--no-nav {
    padding-bottom: var(--spacing-lg);
}

/* ===== Typography ===== */
.lg-heading-1 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-primary);
}

.lg-heading-2 {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--text-primary);
}

.lg-heading-3 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.3;
    color: var(--text-primary);
}

.lg-heading-4 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
}

.lg-body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.lg-body-sm {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-muted);
}

.lg-label {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

/* ===== Header ===== */
.lg-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    padding-top: max(var(--spacing-lg), env(safe-area-inset-top));
}

.lg-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.lg-logo-text {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.lg-logo-text .lg-logo-tld {
    color: var(--color-lime);
}

.lg-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-lime), var(--color-yellow));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    color: var(--color-forest);
    cursor: pointer;
    transition: transform var(--duration-normal) var(--ease-out-back),
                box-shadow var(--duration-normal) ease;
}

.lg-avatar:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow-lime);
}

/* ===== Cards ===== */
.lg-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.lg-card--glass {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lg-card--gradient {
    background: linear-gradient(135deg, var(--color-orange), var(--color-pink));
    border: none;
    color: #fff;
}

.lg-card--gradient-lime {
    background: linear-gradient(135deg, var(--color-lime), var(--color-yellow));
    border: none;
    color: var(--color-forest);
}

.lg-card--gradient-blue {
    background: linear-gradient(135deg, rgba(91, 192, 235, 0.15), rgba(155, 93, 229, 0.1));
    border: 1px solid rgba(91, 192, 235, 0.2);
}

/* ===== Buttons ===== */
.lg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-full);
    border: none;
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out-back);
    text-decoration: none;
}

.lg-btn--primary {
    background: #fff;
    color: var(--color-forest);
    box-shadow: var(--shadow-md);
}

.lg-btn--primary:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-lg);
}

.lg-btn--primary:active {
    transform: scale(0.97);
}

.lg-btn--lime {
    background: var(--color-lime);
    color: var(--color-forest);
    box-shadow: 0 4px 16px rgba(159, 232, 112, 0.3);
}

.lg-btn--lime:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 24px rgba(159, 232, 112, 0.4);
}

.lg-btn--orange {
    background: linear-gradient(135deg, var(--color-orange), var(--color-pink));
    color: #fff;
    box-shadow: 0 4px 16px rgba(255, 138, 91, 0.3);
}

.lg-btn--orange:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 24px rgba(255, 138, 91, 0.4);
}

.lg-btn--ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.lg-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.25);
}

.lg-btn--sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 13px;
}

.lg-btn--lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 17px;
}

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

.lg-btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--duration-normal) ease;
}

.lg-btn:hover svg {
    transform: translateX(3px);
}

/* ===== Progress Bar ===== */
.lg-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.lg-progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.lg-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-lime), var(--color-yellow));
    border-radius: var(--radius-full);
    transition: width 0.6s var(--ease-out-expo);
}

.lg-progress-text {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 40px;
    text-align: right;
}

/* ===== Back Button ===== */
.lg-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out-back);
}

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

.lg-back-btn svg {
    width: 20px;
    height: 20px;
}

/* ===== Bottom Navigation (iOS 26 Liquid Glass) ===== */
.lg-nav {
    position: fixed;
    bottom: max(20px, env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 420px;
    background: rgba(14, 20, 8, 0.85);
    backdrop-filter: blur(40px) saturate(150%);
    -webkit-backdrop-filter: blur(40px) saturate(150%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(159, 232, 112, 0.15);
    padding: 6px;
    display: flex;
    justify-content: space-between;
    z-index: 100;
    box-shadow: var(--shadow-lg),
                inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.lg-nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 14px;
    border-radius: 14px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.35s var(--ease-out-back);
    cursor: pointer;
}

.lg-nav-item:hover {
    color: var(--text-secondary);
}

.lg-nav-item.active {
    background: var(--color-lime);
    color: var(--color-forest);
    padding: 12px 16px;
    box-shadow: 0 2px 12px rgba(159, 232, 112, 0.3);
}

.lg-nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.lg-nav-icon svg {
    width: 20px;
    height: 20px;
}

.lg-nav-label {
    font-size: 13px;
    font-weight: 600;
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    white-space: nowrap;
    transition: all 0.35s var(--ease-out-back);
}

.lg-nav-item.active .lg-nav-label {
    max-width: 60px;
    opacity: 1;
}

/* ===== Form Elements ===== */
.lg-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    transition: all var(--duration-normal) ease;
}

.lg-input:focus {
    outline: none;
    border-color: var(--color-lime);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(159, 232, 112, 0.15);
}

.lg-input::placeholder {
    color: var(--text-hint);
}

/* ===== Selection Options ===== */
.lg-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out-back);
}

.lg-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.lg-option.selected {
    background: var(--color-lime-dim);
    border-color: var(--color-lime);
}

.lg-option-radio {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--duration-normal) ease;
}

.lg-option.selected .lg-option-radio {
    border-color: var(--color-lime);
    background: var(--color-lime);
}

.lg-option.selected .lg-option-radio::after {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-forest);
}

.lg-option-text {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--text-primary);
}

/* ===== Animations ===== */
@keyframes lg-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes lg-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes lg-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

.lg-animate-fadeInUp {
    animation: lg-fadeInUp 0.5s var(--ease-out-expo) both;
}

.lg-animate-fadeIn {
    animation: lg-fadeIn 0.4s ease both;
}

.lg-animate-scaleIn {
    animation: lg-scaleIn 0.4s var(--ease-out-back) both;
}

/* Staggered animation delays */
.lg-delay-1 { animation-delay: 0.1s; }
.lg-delay-2 { animation-delay: 0.2s; }
.lg-delay-3 { animation-delay: 0.3s; }
.lg-delay-4 { animation-delay: 0.4s; }
.lg-delay-5 { animation-delay: 0.5s; }

/* ===== Responsive: Tablet ===== */
@media (min-width: 640px) {
    :root {
        --spacing-lg: 32px;
        --spacing-xl: 48px;
    }

    .lg-container {
        max-width: var(--max-width-tablet);
    }

    .lg-heading-1 {
        font-size: 42px;
    }

    .lg-heading-2 {
        font-size: 32px;
    }

    .lg-card {
        padding: var(--spacing-xl);
        border-radius: var(--radius-xl);
    }

    .lg-nav {
        max-width: 520px;
        padding: 8px 12px;
        border-radius: var(--radius-xl);
    }

    .lg-nav-item {
        padding: 14px 18px;
    }

    .lg-nav-item.active {
        padding: 14px 22px;
    }
}

/* ===== Responsive: Desktop ===== */
@media (min-width: 1024px) {
    .lg-container {
        max-width: var(--max-width-desktop);
        padding-bottom: var(--spacing-xl);
    }

    /* Sidebar navigation on desktop */
    .lg-nav--sidebar {
        position: fixed;
        left: 24px;
        top: 50%;
        bottom: auto;
        transform: translateY(-50%);
        width: 88px;
        max-width: none;
        flex-direction: column;
        padding: 16px 12px;
        gap: 8px;
        border-radius: var(--radius-xl);
    }

    .lg-nav--sidebar .lg-nav-item {
        flex-direction: column;
        padding: 14px 12px;
        gap: 6px;
        border-radius: var(--radius-md);
    }

    .lg-nav--sidebar .lg-nav-item.active {
        padding: 14px 12px;
    }

    .lg-nav--sidebar .lg-nav-label {
        font-size: 11px;
        max-width: none !important;
        opacity: 0.5 !important;
        text-align: center;
    }

    .lg-nav--sidebar .lg-nav-item:hover .lg-nav-label {
        opacity: 0.8 !important;
    }

    .lg-nav--sidebar .lg-nav-item.active .lg-nav-label {
        opacity: 1 !important;
    }

    .lg-container--with-sidebar {
        margin-left: calc(88px + 48px);
        margin-right: auto;
    }
}

/* ===== Utility Classes ===== */
.lg-text-center { text-align: center; }
.lg-text-left { text-align: left; }
.lg-text-right { text-align: right; }

.lg-text-lime { color: var(--color-lime); }
.lg-text-orange { color: var(--color-orange); }
.lg-text-yellow { color: var(--color-yellow); }
.lg-text-blue { color: var(--color-blue); }
.lg-text-muted { color: var(--text-muted); }

.lg-mt-xs { margin-top: var(--spacing-xs); }
.lg-mt-sm { margin-top: var(--spacing-sm); }
.lg-mt-md { margin-top: var(--spacing-md); }
.lg-mt-lg { margin-top: var(--spacing-lg); }
.lg-mt-xl { margin-top: var(--spacing-xl); }

.lg-mb-xs { margin-bottom: var(--spacing-xs); }
.lg-mb-sm { margin-bottom: var(--spacing-sm); }
.lg-mb-md { margin-bottom: var(--spacing-md); }
.lg-mb-lg { margin-bottom: var(--spacing-lg); }
.lg-mb-xl { margin-bottom: var(--spacing-xl); }

.lg-gap-xs { gap: var(--spacing-xs); }
.lg-gap-sm { gap: var(--spacing-sm); }
.lg-gap-md { gap: var(--spacing-md); }
.lg-gap-lg { gap: var(--spacing-lg); }

.lg-flex { display: flex; }
.lg-flex-col { flex-direction: column; }
.lg-flex-center { align-items: center; justify-content: center; }
.lg-flex-between { justify-content: space-between; }

.lg-w-full { width: 100%; }
.lg-h-full { height: 100%; }

/* ===== Special Components ===== */

/* Eyebrow/Label badge */
.lg-eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    color: inherit;
}

/* Badge */
.lg-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.lg-badge--lime {
    background: var(--color-lime-dim);
    color: var(--color-lime);
}

.lg-badge--orange {
    background: rgba(255, 138, 91, 0.15);
    color: var(--color-orange);
}

/* Icon container */
.lg-icon-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(159, 232, 112, 0.12);
    color: var(--color-lime);
}

.lg-icon-container--orange {
    background: rgba(255, 138, 91, 0.15);
    color: var(--color-orange);
}

.lg-icon-container--blue {
    background: rgba(91, 192, 235, 0.15);
    color: var(--color-blue);
}

/* Divider */
.lg-divider {
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: var(--spacing-lg) 0;
}

/* Spacer */
.lg-spacer {
    flex: 1;
}