/**
 * LaihduKotona.fi - CSS-tyylit
 * Sijoita: css/style.css
 */

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

:root {
    --green-500: #22c55e;
    --green-600: #16a34a;
    --green-700: #15803d;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    --red-500: #ef4444;
    --blue-500: #3b82f6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--gray-50);
}

a {
    color: var(--green-600);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--green-600);
    color: white;
}

.btn-primary:hover {
    background: var(--green-700);
    text-decoration: none;
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-full {
    width: 100%;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

/* ========================================
   AUTH PAGES (Login, Register)
   ======================================== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.auth-box {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

.auth-box .logo {
    display: block;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    text-decoration: none;
}

.auth-box .logo span {
    color: var(--green-600);
}

.auth-box h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.auth-form .form-group {
    margin-bottom: 1rem;
}

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"],
.auth-form input[type="number"],
.auth-form select,
.auth-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
}

.auth-form input:focus,
.auth-form select:focus {
    outline: none;
    border-color: var(--green-500);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray-500);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem;
}

.header-inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header .logo {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--gray-900);
    text-decoration: none;
}

.header .logo span {
    color: var(--green-600);
}

.header nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.header nav a {
    color: var(--gray-700);
    font-size: 0.9rem;
}

.header nav a:hover {
    color: var(--green-600);
}

/* ========================================
   DASHBOARD
   ======================================== */
.dashboard {
    padding: 1rem 0 3rem;
}

.welcome-card {
    background: linear-gradient(135deg, var(--green-600), var(--green-700));
    color: white;
    padding: 2rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.welcome-card h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.day-counter {
    font-size: 1.25rem;
    opacity: 0.9;
}

.day-counter strong {
    font-size: 2rem;
}

.progress-bar {
    background: rgba(255,255,255,0.3);
    height: 8px;
    border-radius: 4px;
    margin: 1rem 0 0.5rem;
    overflow: hidden;
}

.progress-fill {
    background: white;
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s;
}

.progress-text {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* Cards */
.card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.card h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Today's Task */
.today-task .task-content {
    margin-bottom: 1rem;
}

.task-category {
    display: inline-block;
    background: var(--green-100);
    color: var(--green-700);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.task-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.task-content p {
    color: var(--gray-700);
}

.task-tip {
    background: #fffbeb;
    border: 1px solid #fcd34d;
    padding: 0.75rem;
    border-radius: 8px;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.task-done {
    background: var(--green-100);
    color: var(--green-700);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
}

/* Quick Links */
.quick-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.quick-link {
    background: white;
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    color: var(--gray-900);
    transition: all 0.2s;
}

.quick-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-decoration: none;
}

.quick-link span {
    display: block;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Weight Mini */
.weight-mini .weight-list {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.weight-item {
    background: var(--gray-100);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-size: 0.875rem;
}

.weight-date {
    color: var(--gray-500);
    margin-right: 0.25rem;
}

.weight-value {
    font-weight: 600;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 2rem 1rem;
    text-align: center;
    font-size: 0.875rem;
}

.footer a {
    color: var(--gray-300);
}

.footer a:hover {
    color: white;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

/* ========================================
   MOBILE & RESPONSIVE
   ======================================== */

/* Tablet */
@media (max-width: 768px) {
    .container {
        padding: 0.75rem;
    }
    
    .header-inner {
        padding: 0 0.5rem;
    }
    
    .header nav {
        gap: 0.5rem;
    }
    
    .header nav a {
        font-size: 0.8rem;
    }
    
    .welcome-card {
        padding: 1.5rem;
    }
    
    .welcome-card h1 {
        font-size: 1.25rem;
    }
    
    .day-counter strong {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .quick-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .quick-link {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .auth-box {
        padding: 1.5rem;
        margin: 0.5rem;
    }
    
    .auth-box h1 {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.65rem 1rem;
        font-size: 0.95rem;
    }
    
    .btn-large {
        padding: 0.85rem 1.25rem;
    }
    
    .header .logo {
        font-size: 1rem;
    }
    
    .quick-links {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 0.75rem;
    }
}

/* Touch-friendly */
@media (hover: none) {
    .btn:active {
        transform: scale(0.98);
    }
    
    .quick-link:active {
        transform: scale(0.98);
    }
}