/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN - Mobile First Approach
   ═══════════════════════════════════════════════════════════════════════════ */

/* Mobile Safe Area Override */
@media (max-width: 768px) {
    :root {
        --safe-top: max(54px, env(safe-area-inset-top));
        --safe-bottom: max(20px, env(safe-area-inset-bottom));
    }
}

/* Extra Small Devices (320px - very small phones) */
@media (max-width: 360px) {
    .bottom-nav {
        left: 10px;
        right: 10px;
        bottom: 10px;
        height: 64px;
        padding: 0 10px;
    }

    .nav-btn {
        padding: 6px 8px;
        font-size: 9px;
    }

    .nav-btn i {
        font-size: 18px;
        width: 20px;
        height: 20px;
    }

    .stat-pill {
        padding: 12px;
        gap: 8px;
    }

    .pill-icon {
        width: 32px;
        height: 32px;
        min-width: 32px;
        font-size: 14px;
    }

    .pill-value {
        font-size: 14px;
    }
    
    .app {
        padding-top: 0;
    }
    
    .balance-amount {
        font-size: 32px !important;
    }
    
    .balance-hero {
        padding: calc(var(--safe-top) + 50px) 12px 28px;
    }
    
    .home-header {
        padding: 0 12px;
        left: 10px;
        right: 10px;
        top: var(--safe-top);
    }
    
    .greeting-name {
        font-size: 15px;
    }
    
    .user-avatar-glow {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .btn-icon-glass {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }
    
    .stats-cards {
        gap: 6px;
    }
    
    .stat-card {
        padding: 10px 6px;
    }
    
    .stat-card-icon {
        width: 28px;
        height: 28px;
        font-size: 12px;
        margin-bottom: 6px;
    }
    
    .stat-card-value {
        font-size: 14px;
    }
    
    .stat-card-label {
        font-size: 9px;
    }
    
    .section-header h2 {
        font-size: 15px;
    }
    
    .screen-header h1 {
        font-size: 17px;
    }
    
    .screen-body {
        padding: 12px;
    }
    
    /* Profile */
    .profile-gamification-card {
        padding: 14px;
    }
    
    .profile-avatar-large {
        width: 50px;
        height: 50px;
    }
    
    .profile-user-info h2 {
        font-size: 16px;
    }
    
    .profile-stats-row {
        gap: 8px;
    }
    
    .profile-stat .stat-value {
        font-size: 16px;
    }
    
    .profile-stat .stat-label {
        font-size: 10px;
    }
    
    /* Achievements */
    .achievement-card {
        padding: 12px;
        gap: 10px;
    }
    
    .achievement-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .achievement-name {
        font-size: 13px;
    }
    
    .achievement-desc {
        font-size: 11px;
    }
    
    .achievement-xp {
        font-size: 10px;
        padding: 3px 8px;
    }
    
    /* Daily Quests */
    .daily-quest-item {
        padding: 10px;
        gap: 10px;
    }
    
    .daily-quest-check {
        width: 20px;
        height: 20px;
    }
    
    .daily-quest-title {
        font-size: 12px;
    }
    
    /* Leaderboard */
    .leaderboard-item {
        padding: 10px 12px;
    }
    
    .leaderboard-rank {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    
    .leaderboard-level-name {
        font-size: 13px;
    }
    
    /* Transactions */
    .tx-item-modern {
        padding: 12px;
    }
    
    .tx-icon-modern {
        width: 36px;
        height: 36px;
        font-size: 14px;
        margin-right: 10px;
    }
    
    .tx-title-modern {
        font-size: 13px;
    }
    
    .tx-amount-modern {
        font-size: 14px;
    }
    
    /* Bottom Nav */
    .bottom-nav {
        height: 56px;
    }
    
    .nav-item i {
        font-size: 18px;
    }
    
    .nav-item span {
        font-size: 9px;
    }
    
    /* Budget */
    .budget-card-header h4 {
        font-size: 14px;
    }
    
    /* Forms */
    .form-input, .form-select {
        font-size: 14px;
        padding: 10px 12px;
    }
    
    /* Settings */
    .setting-row {
        padding: 12px;
    }
    
    .setting-title {
        font-size: 13px;
    }
    
    .setting-desc {
        font-size: 11px;
    }
    
    /* Modals */
    .modal-content {
        padding: 16px;
        margin: 10px;
        max-height: 90vh;
    }
    
    .modal-header h3 {
        font-size: 16px;
    }
    
    /* Emoji Grid */
    .emoji-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: 6px;
    }
    
    .emoji {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    
    /* Summary boxes */
    .summary-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .summary-box {
        padding: 12px;
    }
    
    .summary-icon {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
}

/* Small Devices (321px - 375px - iPhone SE, small Android) */
@media (min-width: 321px) and (max-width: 375px) {
    .balance-amount {
        font-size: 36px;
    }
    
    .balance-hero {
        padding: 24px 16px 32px;
    }
    
    .ie-pill {
        padding: 10px 12px;
    }
    
    .pill-amount {
        font-size: 15px;
    }
    
    .stat-card {
        padding: 12px 8px;
    }
    
    .stat-card-value {
        font-size: 15px;
    }
    
    .screen-body {
        padding: 14px;
    }
    
    .achievement-icon {
        width: 42px;
        height: 42px;
    }
    
    .profile-stats-row {
        gap: 12px;
    }
    
    /* Filters on small devices */
    .filter-row {
        flex-wrap: wrap;
    }
    
    .filter-amount-group {
        flex: 100%;
    }
    
    .achievements-filter .filter-btn,
    .leaderboard-period-filter .period-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .emoji-grid {
        grid-template-columns: repeat(7, 1fr);
    }
}

/* Medium Devices (376px - 414px - iPhone 6/7/8, most Android) */
@media (min-width: 376px) and (max-width: 414px) {
    .balance-amount {
        font-size: 40px;
    }
    
    .stat-card {
        padding: 14px 10px;
    }
    
    .stat-card-value {
        font-size: 16px;
    }
}

/* Large Devices (415px - 480px - iPhone Plus/Max, large Android) */
@media (min-width: 415px) and (max-width: 480px) {
    .balance-amount {
        font-size: 44px;
    }
    
    .ie-pill {
        padding: 12px 20px;
    }
    
    .pill-amount {
        font-size: 18px;
    }
    
    .stat-card {
        padding: 16px 12px;
    }
    
    .screen-body {
        padding: 20px;
    }
}

/* Safe Area Support for notched devices */
@supports (padding: max(0px)) {
    .app {
        padding-top: 0;
    }
    
    .bottom-nav {
        bottom: max(20px, var(--safe-bottom));
        padding-bottom: 20px;
    }
    
    .bottom-nav {
        bottom: max(20px, var(--safe-bottom));
        padding-bottom: 0;
    }
    
    .screen-body {
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 500px) {
    .balance-hero {
        padding: 16px 20px 24px;
    }
    
    .balance-amount {
        font-size: 32px;
    }
    
    .stats-floating-row {
        margin-top: -20px;
    }
    
    .screen-body {
        padding-bottom: 70px;
    }
    
    .modal-content {
        max-height: 85vh;
        overflow-y: auto;
    }
    
    /* Hide some elements in landscape to save space */
    .balance-trend-pill {
        display: none;
    }
}

/* High DPI / Retina display optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .user-avatar-glow,
    .stat-card-icon,
    .achievement-icon,
    .tx-icon-modern {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .xp-popup,
    .level-up-popup,
    .toast {
        animation: none !important;
    }
}

/* Dark mode specific optimizations */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
    }
}

/* Light mode specific optimizations */
@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
        color-scheme: light;
    }
}

/* Touch-friendly hit areas */
@media (hover: none) and (pointer: coarse) {
    .btn-icon-glass,
    .nav-item,
    .setting-row.clickable,
    .filter-btn,
    .period-btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .btn-achievements {
        min-height: 48px;
    }
    
    .achievement-card,
    .daily-quest-item,
    .leaderboard-item,
    .tx-item-modern {
        min-height: 52px;
    }
}

/* Fix for iOS input zoom */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
    input[type="text"],
    input[type="number"],
    input[type="email"],
    input[type="tel"],
    input[type="password"],
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* Improved focus states for accessibility */
@media (hover: hover) {
    .btn-achievements:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
    }
    
    .achievement-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    }
    
    .leaderboard-item:hover {
        background: rgba(99, 102, 241, 0.05);
    }
    
    .daily-quest-item:hover {
        background: rgba(99, 102, 241, 0.08);
    }
    
    .tx-item-modern:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* Print styles (for export) */
@media print {
    .bottom-nav,
    .home-header,
    .screen-header,
    .btn-back {
        display: none !important;
    }
    
    .screen {
        padding: 0 !important;
    }
    
    .screen-body {
        padding: 10px !important;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   TABLET & DESKTOP RESPONSIVE (iPad, Tablets, Laptops)
   ═══════════════════════════════════════════════════════════════════════════ */

/* Small Tablets (481px - 768px - iPad Mini, small tablets) */
@media (min-width: 481px) {
    /* Remove max-width constraint for tablets */
    .app {
        max-width: 600px;
    }
    
    .bottom-nav {
        max-width: 600px;
    }
    
    /* Larger balance display */
    .balance-amount {
        font-size: 52px;
    }
    
    .balance-hero {
        padding: 32px 24px 40px;
        border-radius: 0 0 32px 32px;
    }
    
    /* Better stats cards layout */
    .stats-cards {
        gap: 16px;
        padding: 0 24px 24px;
    }
    
    .stat-card {
        padding: 20px 16px;
    }
    
    .stat-card-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .stat-card-value {
        font-size: 20px;
    }
    
    .stat-card-label {
        font-size: 12px;
    }
    
    /* Income/Expense pills */
    .ie-pill {
        padding: 14px 24px;
    }
    
    .pill-amount {
        font-size: 20px;
    }
    
    /* Screen body padding */
    .screen-body {
        padding: 24px;
    }
    
    /* Larger section headers */
    .section-header h2 {
        font-size: 18px;
    }
    
    /* Transactions */
    .tx-item-modern {
        padding: 18px;
    }
    
    .tx-icon-modern {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .tx-title-modern {
        font-size: 16px;
    }
    
    .tx-amount-modern {
        font-size: 18px;
    }
    
    /* Profile */
    .profile-avatar-large {
        width: 80px;
        height: 80px;
    }
    
    .profile-user-info h2 {
        font-size: 22px;
    }
    
    /* Achievements grid for tablets */
    .achievements-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .achievement-card {
        padding: 18px;
    }
    
    .achievement-icon {
        width: 56px;
        height: 56px;
        font-size: 28px;
    }
    
    /* Leaderboard */
    .leaderboard-list {
        max-width: 500px;
        margin: 0 auto;
    }
    
    /* Daily quests */
    .daily-quests-section {
        max-width: 500px;
    }
    
    /* Modal improvements */
    .modal-box {
        max-width: 500px;
        border-radius: var(--radius-xl);
        margin: auto;
    }
    
    /* Forms */
    .form-field input,
    .form-field select,
    .form-field textarea {
        padding: 16px 18px;
        font-size: 16px;
    }
    
    /* Emoji grid */
    .emoji-grid {
        grid-template-columns: repeat(10, 1fr);
    }
    
    .emoji {
        width: 44px;
        height: 44px;
        font-size: 24px;
    }
}

/* Medium Tablets (769px - 1024px - iPad, iPad Air) */
@media (min-width: 769px) {
    .app {
        max-width: 720px;
    }
    
    .bottom-nav {
        max-width: 720px;
    }
    
    .balance-amount {
        font-size: 60px;
    }
    
    .balance-hero {
        padding: calc(var(--safe-top) + 120px) 32px 48px;
        margin: 0 16px;
        border-radius: 24px;
        margin-top: 16px;
    }
    
    /* Screen body with proper spacing from header */
    .screen-body {
        padding-top: calc(var(--safe-top) + 100px);
    }
    
    /* Stats as 4 columns */
    .stats-cards {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
        padding: 0 32px 32px;
    }
    
    .stat-card {
        padding: 24px 16px;
    }
    
    /* Two-column layout for income/expense */
    .income-expense-pills {
        gap: 20px;
    }
    
    .ie-pill {
        padding: 16px 32px;
    }
    
    /* Screen body */
    .screen-body {
        padding: 32px;
    }
    
    /* Transactions in grid */
    .transactions-list-modern {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .tx-item-modern {
        margin-bottom: 0;
    }
    
    /* Profile stats */
    .profile-stats-row {
        gap: 32px;
    }
    
    .profile-stat .stat-value {
        font-size: 24px;
    }
    
    /* Achievements 3 columns */
    .achievements-list {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Settings two columns */
    .settings-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    /* Budget cards grid */
    .budget-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    /* Recurring payments grid */
    .recurring-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

/* Large Tablets & Small Laptops (1025px - 1280px - iPad Pro, small laptops) */
@media (min-width: 1025px) {
    .app {
        max-width: 900px;
    }
    
    .bottom-nav {
        max-width: 900px;
        /* Optional: convert to sidebar on large screens */
    }
    
    .balance-amount {
        font-size: 68px;
    }
    
    .balance-hero {
        padding: calc(var(--safe-top) + 120px) 40px 56px;
    }
    
    /* Stats */
    .stat-card {
        padding: 28px 20px;
    }
    
    .stat-card-value {
        font-size: 24px;
    }
    
    /* Screen body */
    .screen-body {
        padding-top: calc(var(--safe-top) + 100px);
        padding-left: 40px;
        padding-right: 40px;
        padding-bottom: 40px;
    }
    
    /* Achievements 4 columns */
    .achievements-list {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Analytics charts side by side */
    .analytics-charts {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    /* Categories grid */
    .categories-breakdown {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    /* Larger modals */
    .modal-box {
        max-width: 600px;
        padding: 32px;
    }
}

/* Desktop & Large Laptops (1281px+) */
@media (min-width: 1281px) {
    .app {
        max-width: 1080px;
    }
    
    .bottom-nav {
        max-width: 1080px;
    }
    
    .balance-amount {
        font-size: 76px;
    }
    
    .balance-hero {
        padding: calc(var(--safe-top) + 120px) 48px 64px;
    }
    
    /* Home screen layout */
    .home-content {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 32px;
        align-items: start;
    }
    
    /* Main content area */
    .home-main {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    
    /* Sidebar area */
    .home-sidebar {
        position: sticky;
        top: 80px;
    }
    
    /* Transactions 3 columns */
    .transactions-list-modern {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Screen body */
    .screen-body {
        padding-top: calc(var(--safe-top) + 100px);
        padding-left: 48px;
        padding-right: 48px;
        padding-bottom: 48px;
    }
    
    /* Better spacing */
    .section-header {
        margin-bottom: 24px;
    }
    
    .section-header h2 {
        font-size: 20px;
    }
}

/* Ultra Wide / 4K Displays (1600px+) */
@media (min-width: 1600px) {
    .app {
        max-width: 1280px;
    }
    
    .bottom-nav {
        max-width: 1280px;
    }
    
    .balance-hero {
        padding: calc(var(--safe-top) + 120px) 48px 64px;
    }
    
    .balance-amount {
        font-size: 84px;
    }
    
    /* Even larger stats */
    .stat-card {
        padding: 32px 24px;
    }
    
    .stat-card-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    
    .stat-card-value {
        font-size: 28px;
    }
    
    /* Screen body */
    .screen-body {
        padding-top: calc(var(--safe-top) + 100px);
        padding-left: 56px;
        padding-right: 56px;
        padding-bottom: 56px;
    }
}

/* iPad specific orientation handling */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    /* iPad Portrait */
    .balance-hero {
        padding: calc(var(--safe-top) + 120px) 32px 48px;
        margin: 16px;
        border-radius: 24px;
    }
    
    .screen-body {
        padding-top: calc(var(--safe-top) + 100px);
    }
    
    .stats-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .achievements-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    /* iPad Landscape */
    .stats-cards {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .achievements-list {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .transactions-list-modern {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Hover states for devices with mouse/trackpad */
@media (hover: hover) and (pointer: fine) {
    .stat-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    }
    
    .tx-item-modern:hover {
        transform: translateX(4px);
        background: rgba(99, 102, 241, 0.05);
    }
    
    .setting-row.clickable:hover {
        background: var(--bg-hover);
    }
    
    .nav-btn:hover {
        background: rgba(99, 102, 241, 0.1);
        border-radius: 12px;
    }
    
    .btn:hover {
        transform: translateY(-2px);
    }
    
    /* Cursor pointer for interactive elements */
    .stat-card,
    .tx-item-modern,
    .achievement-card,
    .leaderboard-item,
    .daily-quest-item {
        cursor: pointer;
    }
}

/* Desktop-specific bottom nav style (optional sidebar conversion) */
@media (min-width: 1025px) and (hover: hover) {
    /* Keep bottom nav but make it more prominent */
    .bottom-nav {
        background: rgba(18, 18, 26, 0.95);
        backdrop-filter: blur(20px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-btn {
        padding: 12px 20px;
        border-radius: 12px;
        transition: all 0.2s ease;
    }
    
    .nav-btn:hover {
        background: rgba(99, 102, 241, 0.15);
    }
    
    .nav-btn i {
        font-size: 24px;
    }
    
    .nav-btn span {
        font-size: 12px;
    }
}