/**
 * GSDM Golf Round Tracking PWA - Responsive Stylesheet
 * Mobile-first responsive design with touch-friendly controls
 */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    :root {
        font-size: 15px;
    }
    
    .container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .logo {
        height: 40px;
    }
    
    .header-title {
        font-size: 1.125rem;
    }
    
    .nav {
        padding: 0 var(--spacing-md);
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.8125rem;
    }
}

/* Mobile (up to 768px) */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    html, body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100vw;
    }
    
    /* Layout */
    .container {
        padding: var(--spacing-md) var(--spacing-sm);
        overflow-x: hidden;
    }
    
    /* Header */
    .header {
        padding: var(--spacing-sm);
        overflow-x: hidden;
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
        overflow-x: hidden;
    }
    
    .header-left {
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .logo {
        height: 35px;
    }
    
    .header-title {
        font-size: 1rem;
    }
    
    .header-right {
        flex-direction: row;
        justify-content: space-between;
        width: 100%;
    }
    
    .user-info {
        text-align: left;
    }
    
    .username {
        font-size: 0.8125rem;
    }
    
    .session-info {
        font-size: 0.6875rem;
    }
    
    .btn-logout {
        padding: 6px 12px;
        font-size: 0.8125rem;
    }
    
    /* Navigation */
    .nav {
        padding: 0;
    }
    
    .nav-content {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE/Edge */
    }
    
    .nav-content::-webkit-scrollbar {
        display: none; /* Chrome/Safari */
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.75rem;
    }
    
    /* Typography */
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.375rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.125rem; }
    h5 { font-size: 1rem; }
    h6 { font-size: 0.875rem; }
    
    /* Cards */
    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
        overflow-x: hidden;
    }
    
    /* Buttons */
    .btn {
        padding: 8px 16px;
        font-size: 0.8125rem;
        white-space: nowrap;
    }
    
    .btn-sm {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
    
    .btn-lg {
        padding: 12px 20px;
        font-size: 0.875rem;
    }
    
    /* Forms */
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    label {
        font-size: 0.8125rem;
    }
    
    input[type="text"],
    input[type="email"],
    input[type="number"],
    input[type="password"],
    input[type="date"],
    input[type="tel"],
    select,
    textarea {
        padding: 10px 12px;
        font-size: 0.875rem;
        /* Larger touch targets */
        min-height: 44px;
    }
    
    /* Tables */
    .table-responsive {
        margin: 0 calc(var(--spacing-sm) * -1);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    table {
        font-size: 0.75rem;
        min-width: 100%;
    }
    
    th, td {
        padding: 8px 6px;
        font-size: 0.75rem;
    }
    
    th {
        font-size: 0.6875rem;
        position: sticky;
        top: 0;
        background: var(--color-gray-50);
        z-index: 10;
    }
    
    /* Scorecard specific */
    .scores-table {
        font-size: 0.6875rem;
    }
    
    .scores-table th,
    .scores-table td {
        padding: 6px 4px;
        min-width: 35px;
    }
    
    .scores-table .hole-number {
        position: sticky;
        left: 0;
        background: var(--color-gray-50);
        z-index: 5;
        font-weight: 700;
    }
    
    /* Alerts */
    .alert {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.8125rem;
    }
    
    /* Stats Grid */
    .player-stats,
    .round-info {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .stat-box {
        padding: var(--spacing-sm);
    }
    
    .stat-label {
        font-size: 0.625rem;
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
    
    /* Footer */
    .footer {
        padding: var(--spacing-md) var(--spacing-sm);
        font-size: 0.75rem;
    }
    
    /* Empty State */
    .empty-state {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .empty-state-icon {
        font-size: 3rem;
    }
    
    .empty-state-title {
        font-size: 1.125rem;
    }
    
    /* Utility adjustments */
    .d-md-none {
        display: none !important;
    }
    
    .d-md-block {
        display: block !important;
    }
}

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
    :root {
        font-size: 13px;
    }
    
    .container {
        padding: var(--spacing-sm);
    }
    
    .header-left {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .logo {
        height: 30px;
    }
    
    .header-title {
        font-size: 0.875rem;
    }
    
    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.6875rem;
    }
    
    /* Typography */
    h1 { font-size: 1.375rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
    h4 { font-size: 1rem; }
    
    /* Cards */
    .card {
        padding: var(--spacing-sm);
    }
    
    /* Buttons - Stack on very small screens */
    .btn-group {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .btn-group .btn {
        width: 100%;
    }
    
    /* Forms */
    input[type="text"],
    input[type="email"],
    input[type="number"],
    input[type="password"],
    input[type="date"],
    input[type="tel"],
    select,
    textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    /* Tables */
    .scores-table th,
    .scores-table td {
        padding: 4px 2px;
        min-width: 30px;
    }
    
    /* Stats Grid - Single column on very small screens */
    .player-stats,
    .round-info {
        grid-template-columns: 1fr;
    }
    
    .stat-value {
        font-size: 1.125rem;
    }
    
    /* Utility */
    .d-sm-none {
        display: none !important;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .header-content {
        flex-direction: row;
    }
    
    .header-left {
        flex-direction: row;
    }
    
    .header-right {
        width: auto;
    }
    
    .logo {
        height: 30px;
    }
}

/* Touch-specific enhancements */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .btn,
    .nav-link,
    a {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Remove hover effects on touch devices */
    .btn:hover,
    .nav-link:hover,
    tr:hover {
        transform: none;
        box-shadow: none;
    }
    
    /* Add active states instead */
    .btn:active {
        transform: scale(0.98);
    }
    
    .nav-link:active {
        background: var(--color-gray-100);
    }
}

/* High DPI screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Print styles */
@media print {
    .header,
    .nav,
    .footer,
    .btn,
    .alert {
        display: none;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--color-gray-200);
        page-break-inside: avoid;
    }
    
    table {
        page-break-inside: auto;
    }
    
    tr {
        page-break-inside: avoid;
        page-break-after: auto;
    }
}

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

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    /* Placeholder for dark mode styles */
    /* Can be implemented in future iterations */
}