/* ========================================
   STADTRADELN - Forest Trail Theme
   Nature-inspired cycling tracker
   ======================================== */

/* Google Fonts - Organic typography */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&display=swap');

/* ========================================
   CSS Custom Properties - Forest Palette
   ======================================== */
:root {
    color-scheme: light dark;

    /* Forest Greens */
    --forest-deep: #1B4332;
    --forest-mid: #2D5A27;
    --forest-light: #40916C;

    /* Fresh Mint/Sage */
    --mint-fresh: #52B788;
    --mint-soft: #74C69D;
    --mint-pale: #95D5B2;

    /* Golden Sunlight (through leaves) */
    --sun-gold: #D4A574;
    --sun-amber: #E9B44C;
    --sun-soft: #F2CC8F;

    /* Earthy Browns */
    --earth-bark: #6B4423;
    --earth-soil: #8B5A2B;
    --earth-light: #A67C52;

    /* Light mode backgrounds */
    --cream-light: #FAF8F5;
    --cream-mid: #F5F2EB;
    --cream-warm: #EDE8DC;

    /* Dark mode backgrounds */
    --night-deep: #0D1A14;
    --night-forest: #132A1E;
    --night-canopy: #1A3D2B;

    /* Semantic colors */
    --color-primary: var(--forest-light);
    --color-primary-hover: var(--forest-mid);
    --color-secondary: var(--mint-fresh);
    --color-accent: var(--sun-gold);
    --color-danger: #C1574A;
    --color-danger-hover: #A64539;

    /* Dynamic theme colors */
    --color-bg: light-dark(var(--cream-light), var(--night-deep));
    --color-bg-elevated: light-dark(var(--cream-mid), var(--night-forest));
    --color-bg-card: light-dark(#FFFFFF, var(--night-canopy));
    --color-text: light-dark(var(--forest-deep), var(--cream-mid));
    --color-text-muted: light-dark(var(--earth-light), var(--mint-pale));
    --color-border: light-dark(var(--cream-warm), rgba(116, 198, 157, 0.2));

    /* Typography */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Source Serif 4', Georgia, serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border radius - organic shapes */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;

    /* Shadows */
    --shadow-soft: 0 2px 8px rgba(27, 67, 50, 0.08);
    --shadow-medium: 0 4px 16px rgba(27, 67, 50, 0.12);
    --shadow-strong: 0 8px 32px rgba(27, 67, 50, 0.16);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode shadow adjustments */
@media (prefers-color-scheme: dark) {
    :root {
        --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.4);
        --shadow-strong: 0 8px 32px rgba(0, 0, 0, 0.5);
    }
}

/* ========================================
   Base Styles
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    margin: 0;
    padding: 0;
    min-height: 100vh;

    /* Subtle texture overlay */
    background-image:
        light-dark(
            radial-gradient(circle at 20% 80%, rgba(116, 198, 157, 0.05) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, rgba(64, 145, 108, 0.08) 0%, transparent 50%)
        );
    background-attachment: fixed;
}

/* Headings - Display font */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: light-dark(var(--forest-deep), var(--mint-soft));
    margin: 0 0 var(--space-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

/* Links */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: light-dark(var(--forest-deep), var(--mint-pale));
}

/* ========================================
   Layout
   ======================================== */
.page-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    text-align: center;
}

/* ========================================
   Cards & Sections
   ======================================== */
.card, .settings-section, .team-stats {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    text-align: left;
    box-shadow: var(--shadow-soft);
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);

    /* Subtle leaf pattern accent */
    position: relative;
    overflow: hidden;
}

.card::before, .settings-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--mint-fresh) 0%, transparent 60%);
    opacity: 0.06;
    border-radius: 0 var(--radius-lg) 0 100%;
    pointer-events: none;
}

.card:hover, .settings-section:hover {
    box-shadow: var(--shadow-medium);
}

.settings-section h2 {
    margin-top: 0;
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--space-lg);
}

/* ========================================
   Forms
   ======================================== */
.form-group {
    margin-bottom: var(--space-lg);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--mint-fresh);
    box-shadow: 0 0 0 3px rgba(82, 183, 136, 0.2);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.7;
}

.form-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-lg);
}

.form-footer {
    margin-top: var(--space-xl);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.form-footer a {
    font-weight: 500;
    color: light-dark(var(--forest-light), var(--mint-fresh));
}

.form-footer a:hover {
    color: light-dark(var(--forest-deep), #ffffff);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--forest-light) 0%, var(--forest-mid) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(45, 90, 39, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--forest-mid) 0%, var(--forest-deep) 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(45, 90, 39, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    background: light-dark(var(--forest-light), var(--mint-fresh));
    border-color: light-dark(var(--forest-light), var(--mint-fresh));
    color: #ffffff;
}

.btn-accent {
    background: linear-gradient(135deg, var(--sun-gold) 0%, var(--sun-amber) 100%);
    color: var(--forest-deep);
    box-shadow: 0 2px 8px rgba(212, 165, 116, 0.3);
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--sun-amber) 0%, var(--sun-gold) 100%);
    color: var(--forest-deep);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.5);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-hover) 100%);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--color-danger-hover) 0%, #8B3A30 100%);
    color: #ffffff;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

/* ========================================
   Auth Container
   ======================================== */
.auth-container {
    max-width: 420px;
    margin: var(--space-2xl) auto;
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium);
    text-align: center;

    /* Decorative corner accent */
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--mint-fresh), var(--forest-light));
    border-radius: 2px;
}

.auth-container h1 {
    margin-bottom: var(--space-xl);
    color: light-dark(var(--forest-deep), var(--mint-soft));
}

/* ========================================
   Messages
   ======================================== */
.error {
    color: var(--color-danger);
    background: light-dark(rgba(193, 87, 74, 0.1), rgba(193, 87, 74, 0.2));
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    margin: var(--space-sm) 0;
    font-size: 0.9rem;
}

.success {
    color: light-dark(var(--forest-deep), var(--mint-pale));
    background: light-dark(rgba(82, 183, 136, 0.15), rgba(82, 183, 136, 0.2));
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    margin: var(--space-sm) 0;
    font-size: 0.9rem;
}

.warning {
    color: var(--sun-amber);
    background: light-dark(rgba(233, 180, 76, 0.15), rgba(233, 180, 76, 0.2));
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.warning a {
    color: light-dark(var(--earth-bark), var(--sun-soft));
    font-weight: 600;
}

.warning a:hover {
    color: light-dark(var(--forest-deep), #ffffff);
}

/* ========================================
   User Info
   ======================================== */
.user-info {
    margin-bottom: var(--space-xl);
    padding: var(--space-md);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
    text-align: left;
}

.user-info p {
    margin: var(--space-xs) 0;
}

/* ========================================
   Team Styles
   ======================================== */
.team-overview h2 {
    margin-bottom: var(--space-md);
}

.team-stats {
    margin: var(--space-lg) 0;
}

.no-team {
    padding: var(--space-2xl);
    text-align: center;
}

/* ========================================
   Type Switcher
   ======================================== */
.type-switcher {
    margin-bottom: var(--space-md);
}

.type-switcher li {
    cursor: pointer;
    background: linear-gradient(135deg, var(--mint-fresh) 0%, var(--forest-light) 100%);
    color: white;
}

.type-switcher li:hover {
    transform: scale(1.01);
}

/* ========================================
   Stat Display
   ======================================== */
.stat-highlight {
    display: inline-block;
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--forest-light);
    background: linear-gradient(135deg, var(--forest-light), var(--mint-fresh));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Accessibility
   ======================================== */
.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;
}

/* Focus styles */
:focus-visible {
    outline: 2px solid var(--mint-fresh);
    outline-offset: 2px;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gentlePulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

/* Staggered animation delays */
.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.2s; }
.animate-in:nth-child(3) { animation-delay: 0.3s; }
.animate-in:nth-child(4) { animation-delay: 0.4s; }
.animate-in:nth-child(5) { animation-delay: 0.5s; }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 600px) {
    .page-content {
        padding: var(--space-md);
    }

    .card, .settings-section, .auth-container {
        padding: var(--space-lg);
        border-radius: var(--radius-md);
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}