:root {
    --bg-color: #06130a;
    --bg-surface: rgba(13, 36, 24, 0.78);
    --bg-main: #0b1c11;
    --bg-hover: #0f2a1a;
    --panel-bg: rgba(13, 36, 24, 0.72);
    --accent-color: #4ade80;
    --accent-rgb: 74, 222, 128;
    --text-primary: #f0fdf4;
    --text-secondary: #86efac;
    --cell-border: #1a462f;
    --white-cell-bg: #f5fff8;
    --black-cell-bg: #06130a;
    --border-color: #1f5c3b;
    --primary-btn: #10b981;
    --danger-btn: #f43f5e;
    --success-color: #22c55e;
    --error-color: #fb7185;
    --font-heading: 'Unbounded', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;

    --bg-grad-1: #0d3b20;
    --bg-grad-2: #155e2d;
    --grad-stop-color: #06130a;
    --title-grad-1: #86efac;
    --title-grad-2: #4ade80;
    --title-grad-3: #10b981;
    --btn-grad-1: #10b981;
    --btn-grad-2: #4ade80;
    --given-bg: #dcfce7;
    --white-hover-bg: #e6ffed;
    --completed-clue: #6ee7b7;
}

body.theme-blue {
    --bg-color: #060a13;
    --bg-surface: rgba(13, 24, 36, 0.78);
    --bg-main: #0b111c;
    --bg-hover: #0f1a2a;
    --panel-bg: rgba(13, 24, 36, 0.72);
    --accent-color: #60a5fa;
    --accent-rgb: 96, 165, 250;
    --text-primary: #eff6ff;
    --text-secondary: #93c5fd;
    --cell-border: #1a2f46;
    --white-cell-bg: #f5f8ff;
    --black-cell-bg: #060a13;
    --border-color: #1f3b5c;
    --primary-btn: #3b82f6;
    --bg-grad-1: #0d203b;
    --bg-grad-2: #152d5e;
    --grad-stop-color: #060a13;
    --title-grad-1: #93c5fd;
    --title-grad-2: #60a5fa;
    --title-grad-3: #3b82f6;
    --btn-grad-1: #3b82f6;
    --btn-grad-2: #60a5fa;
    --given-bg: #dbeafe;
    --white-hover-bg: #eff6ff;
    --completed-clue: #93c5fd;
}

body.theme-yellow {
    --bg-color: #131306;
    --bg-surface: rgba(36, 36, 13, 0.78);
    --bg-main: #1c1c0b;
    --bg-hover: #2a2a0f;
    --panel-bg: rgba(36, 36, 13, 0.72);
    --accent-color: #facc15;
    --accent-rgb: 250, 204, 21;
    --text-primary: #fefce8;
    --text-secondary: #fde047;
    --cell-border: #46461a;
    --white-cell-bg: #fffff5;
    --black-cell-bg: #131306;
    --border-color: #5c5c1f;
    --primary-btn: #eab308;
    --bg-grad-1: #3b3b0d;
    --bg-grad-2: #5e5e15;
    --grad-stop-color: #131306;
    --title-grad-1: #fde047;
    --title-grad-2: #facc15;
    --title-grad-3: #eab308;
    --btn-grad-1: #eab308;
    --btn-grad-2: #facc15;
    --given-bg: #fef08a;
    --white-hover-bg: #fefce8;
    --completed-clue: #fde047;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.hidden {
    display: none !important;
}

body {
    background-color: var(--bg-color);
    background-image:
        radial-gradient(circle at 15% 10%, var(--bg-grad-1) 0%, var(--grad-stop-color) 55%),
        radial-gradient(circle at 85% -10%, var(--bg-grad-2) 0%, var(--grad-stop-color) 60%);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.app-container {
    width: 95%;
    max-width: 1400px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    flex: 1;
}

header {
    position: relative;
    text-align: center;
    margin-bottom: 3rem;
}

.header-auth {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    /* perfectly center vertically if relative to header */
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.left-column .header-auth {
    position: relative;
    top: auto;
    right: auto;
    transform: none;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    background: var(--panel-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.left-column .auth-btn {
    width: auto;
    padding: 0.3rem 0.7rem;
    font-size: 0.7rem;
}

.auth-btn {
    padding: 0.3rem 0.7rem;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 8px;
    background-color: var(--panel-bg);
    border: 1.5px solid var(--accent-color);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(var(--accent-rgb), 0.2);
    cursor: pointer;
    transition: all 0.2s;
}

.auth-btn:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-color);
}

.auth-btn.primary {
    background: linear-gradient(135deg, var(--btn-grad-1), var(--btn-grad-2));
    border: none;
    color: white;
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.4);
}

.auth-btn.primary:hover {
    filter: brightness(1.2);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(var(--accent-rgb), 0.6);
}

header {
    position: relative;
    text-align: center;
    margin-bottom: 3rem;
}

.puzzle-hash {
    font-family: 'Space Grotesk', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.35);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    margin: 1rem auto 0;
    max-width: 95%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    white-space: nowrap;
    gap: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.default-badge {
    background-color: var(--accent-color);
    color: white;
    font-size: 0.65rem;
    font-weight: bold;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 0 5px rgba(var(--accent-rgb), 0.5);
}

.save-default-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-body);
}

.save-default-btn:hover {
    background: var(--accent-color);
    color: white;
}

/* Main Layout */
.game-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.game-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    letter-spacing: 0.4rem;
    background: linear-gradient(90deg, var(--title-grad-1), var(--title-grad-2), var(--title-grad-3));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    margin-bottom: 0.2rem;
}

.game-subtitle {
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.15rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

main {
    display: flex;
    gap: 3rem;
    justify-content: center;
    align-items: flex-start;
}

.game-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.top-controls {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    width: 100%;
}

.icon-btn {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(30, 41, 59, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
    padding: 10px;
}

.icon-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: invert(1);
    /* Ensure icons are white since they are likely black SVG */
}

/* Specific icon adjustments if needed */
.icon-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.35);
}

.icon-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    transform: translateY(1px);
}

/* Puzzle Grid */
.puzzle-grid {
    display: grid;
    grid-template-columns: repeat(var(--grid-cols, 7), 60px);
    grid-template-rows: repeat(var(--grid-cols, 7), 60px);
    width: max-content;
    max-width: max-content;
    margin: 0 auto;
    background-color: var(--cell-border);
    border: 3px solid var(--cell-border);
    border-radius: 8px;
    overflow: hidden;
    gap: 1px;
    /* Create 1px borders via gaps */
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    aspect-ratio: 1;
}

.cell {
    width: 60px;
    /* Fallback/Desktop default if not overridden */
    height: 60px;
    /* Crucial for responsiveness */
    position: relative;
    /* Border removed to use grid gap */
    border: none;
    transition: all 0.2s ease;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.cell.white {
    background-color: var(--white-cell-bg);
    color: #000;
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none;
}

.cell.white.given {
    background-color: var(--given-bg);
    font-weight: 700;
    cursor: default;
}

.cell.white:hover {
    background-color: var(--white-hover-bg);
}

.cell.white.selected {
    box-shadow: inset 0 0 0 3px var(--accent-color);
    z-index: 10;
}

/* Notes Grid */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    width: 100%;
    height: 100%;
    padding: 2px;
}

.note-item {
    font-family: Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 0.85rem;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    line-height: 1;
    font-weight: 700;
    border-radius: 2px;
}

.note-item {
    cursor: pointer;
}

.note-item:hover {
    background: rgba(var(--accent-rgb), 0.2);
}

.cell.black {
    background-color: var(--black-cell-bg);
}

/* Clue Rendering */
.clue-svg {
    width: 100%;
    height: 100%;
}

.clue-line {
    stroke: var(--cell-border);
    stroke-width: 1;
}

.clue-text {
    fill: #fff;
    font-size: 14px;
    font-family: var(--font-heading);
    font-weight: 700;
}

.clue-symbol {
    fill: #fff;
    font-size: 20px;
}

.clue-text.completed {
    fill: var(--completed-clue);
    /* greyish green */
    opacity: 0.8;
}

.clue-text.error {
    fill: var(--error-color);
    opacity: 0.9;
}

.cell.white.error-cell {
    background-color: rgba(251, 113, 133, 0.4) !important;
}

/* Controls Panel */
.controls,
.left-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 250px;
}

.panel {
    background: var(--panel-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.panel h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    letter-spacing: 0.1rem;
}

.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.key-btn {
    font-family: Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    aspect-ratio: 1;
    border-radius: 8px;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.key-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.key-btn[data-value="5"] {
    font-size: 2rem;
}

.clear-btn {
    grid-column: span 3;
    aspect-ratio: auto;
    padding: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.hash-search {
    display: flex;
    gap: 0.5rem;
    width: 100%;
    align-items: stretch;
}

.hash-search input {
    flex: 1 1 auto;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: var(--font-body);
}

.hash-search input::placeholder {
    color: var(--text-secondary);
}

.hash-search button {
    flex: 0 0 auto;
    padding: 0.65rem 0.9rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.hash-search button:hover {
    filter: brightness(1.1);
}

.mode-toggle {
    display: flex;
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 3px;
    gap: 3px;
    margin-bottom: 0.5rem;
}

.mode-btn {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    padding: 0.5rem !important;
    font-size: 0.8rem !important;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
}

.mode-btn.active {
    background: var(--accent-color) !important;
    color: white !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.actions button {
    flex: 1 1 45%;
    padding: 0.75rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.actions button:hover {
    filter: brightness(1.1);
}

.bottom-controls {
    display: flex;
    gap: 1rem;
    width: 100%;
    margin-top: 1rem;
}

.bottom-controls button {
    flex: 1;
    padding: 0.8rem;
    border-radius: 8px;
    border: none;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.bottom-controls #reset-btn {
    background: rgba(244, 63, 94, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(244, 63, 94, 0.3);
}

.bottom-controls #reset-btn:hover {
    background: rgba(244, 63, 94, 0.25);
    transform: translateY(-2px);
}

.bottom-controls #ready-btn {
    background: linear-gradient(135deg, var(--btn-grad-1), var(--btn-grad-2));
    color: white;
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.4);
}

.bottom-controls #ready-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(var(--accent-rgb), 0.6);
}

.actions .danger {
    color: #fca5a5;
}

.new-puzzle-group {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}

.size-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.size-group h4 {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05rem;
    margin-bottom: 0.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.2rem;
}

.new-puzzle-btn {
    text-align: left;
    padding: 0.6rem 1rem !important;
    font-size: 0.85rem !important;
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    transition: all 0.2s;
}

.new-puzzle-btn:hover {
    background: rgba(var(--accent-rgb), 0.15) !important;
    border-color: var(--accent-color) !important;
    transform: translateX(4px);
}

.new-puzzle-btn.active {
    background: rgba(var(--accent-rgb), 0.3) !important;
    border-color: var(--accent-color) !important;
    transform: translateX(4px);
    box-shadow: inset 3px 0 0 var(--accent-color);
    color: white;
}

/* Mobile Popup Keypad */
.mobile-popup {
    position: absolute;
    z-index: 1000;
    background: var(--bg-surface);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transform: translate(-50%, 0);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.mobile-popup.hidden {
    display: none;
    opacity: 0;
    pointer-events: none;
}

.popup-header {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.popup-header .icon-btn {
    width: 44px;
    height: 44px;
    padding: 8px;
    background: rgba(20, 50, 35, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    cursor: pointer;
    flex: 1;
}

.popup-header .icon-btn:hover {
    background: rgba(30, 80, 50, 0.8);
}

.popup-header .icon-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.popup-header .icon-btn.danger {
    background: rgba(244, 63, 94, 0.2);
    border-color: rgba(244, 63, 94, 0.4);
    color: var(--danger-btn);
    font-size: 1.5rem;
    font-weight: bold;
}

.popup-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.popup-grid .key-btn {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
    background: #0f2a1a;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    cursor: pointer;
}

.popup-grid .key-btn:active {
    background: var(--primary-btn);
}

/* Status Message (Relocated Toast) */
.status-message {
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    min-height: 38px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transition: all 0.3s ease;
    animation: slideInDown 0.3s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.status-message.hidden {
    display: block !important;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.status-message.success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.status-message.error {
    background: rgba(244, 63, 94, 0.1);
    border-color: rgba(244, 63, 94, 0.3);
    color: #fb7185;
}

.status-message.info {
    background: rgba(var(--accent-rgb), 0.1);
    border-color: rgba(var(--accent-rgb), 0.3);
    color: var(--accent-color);
}

@media (max-width: 900px),
(pointer: coarse) {
    main {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        width: 100%;
        min-width: 0;
    }

    .left-column {
        display: contents;
    }

    .header-auth {
        order: -1;
    }

    .game-column {
        order: 1;
    }

    #new-puzzle-panel {
        order: 2;
        margin-top: 1rem;
    }

    .right-column {
        order: 3;
    }

    header {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .header-auth {
        position: relative;
        top: auto;
        right: auto;
        transform: none;
        justify-content: center;
    }

    .puzzle-hash {
        max-width: 90%;
    }

    .controls .keypad {
        display: none;
    }

    #magic-wand-btn {
        display: none !important;
    }

    .game-column {
        width: 100%;
        min-width: 0;
    }

    .controls {
        width: 100%;
        max-width: 500px;
    }

    /* Tablet/Small Laptop Sizing */
    .cell {
        width: auto;
        height: auto;
        font-size: 1.5rem;
    }

    .puzzle-grid {
        grid-template-columns: repeat(var(--grid-cols, 7), minmax(0, 1fr));
        grid-template-rows: repeat(var(--grid-cols, 7), minmax(0, 1fr));
        width: 100%;
        max-width: min(100%, calc(var(--grid-cols, 7) * 60px + calc(var(--grid-cols, 7) - 1) * 1px + 6px));
        aspect-ratio: 1;
    }

    .note-item {
        font-size: 0.72rem;
        font-weight: 800;
    }

    .cell.white.selected {
        box-shadow: inset 0 0 0 2px var(--accent-color);
    }
}

@media (max-width: 500px) {
    .app-container {
        padding: 1rem;
        width: 95%;
    }

    .header-auth {
        flex-direction: row;
        width: 100%;
        gap: 0.5rem;
        flex-wrap: wrap;
    }

    .auth-btn {
        width: auto;
        text-align: center;
        padding: 0.75rem;
    }

    h1 {
        font-size: 2.5rem;
        letter-spacing: 0.2rem;
    }

    .cell {
        width: auto;
        height: auto;
        max-width: none;
        max-height: none;
        font-size: 1.2rem;
    }

    .notes-grid {
        padding: 0;
    }

    .note-item {
        font-size: 0.58rem;
        font-weight: 800;
    }

    .cell.white.selected {
        box-shadow: inset 0 0 0 1px var(--accent-color);
    }

    .keypad-grid {
        gap: 0.25rem;
    }

    .key-btn {
        font-size: 1.2rem;
    }

    /* Stack top controls more tightly */
    .top-controls {
        gap: 0.75rem;
    }

    .icon-btn {
        width: 40px;
        height: 40px;
        padding: 8px;
    }

    .modal-content {
        padding: 1.5rem;
        width: 92%;
    }
}

/* Magic Mode */
.magic-mode-active {
    background: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 15px var(--accent-color);
    animation: pulse-border 2s infinite;
}

@keyframes pulse-border {
    0% {
        box-shadow: 0 0 10px var(--accent-color);
    }

    50% {
        box-shadow: 0 0 20px var(--accent-color);
    }

    100% {
        box-shadow: 0 0 10px var(--accent-color);
    }
}

.note-item.preview {
    color: var(--accent-color) !important;
    opacity: 0.8;
}

/* Auth Header & Modals */
.header-left {
    display: inline-block;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 3rem;
    margin: 0;
}

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

.header-auth span {
    font-weight: 600;
    color: var(--text-primary);
}

.auth-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--text-primary);
    padding: 0.3rem 0.7rem;
    border-radius: 8px;
    font-size: 0.7rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.auth-btn:hover {
    background: rgba(var(--accent-rgb), 0.2);
}

.auth-btn.primary {
    background: var(--accent-color);
    color: white;
}

.auth-btn.primary:hover {
    background: var(--primary-btn);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-surface);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 400px;
    position: relative;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.modal-content.hidden {
    display: none;
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-content h2 {
    font-family: var(--font-heading);
    margin-bottom: 1.5rem;
    text-align: center;
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-content input {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.4);
    color: white;
    font-family: var(--font-body);
}

.modal-content input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.modal-content button[type="submit"] {
    padding: 0.8rem;
    border-radius: 8px;
    border: none;
    background: var(--accent-color);
    color: white;
    font-weight: bold;
    cursor: pointer;
    margin-top: 0.5rem;
    font-size: 1rem;
    transition: background 0.2s;
}

.modal-content button[type="submit"]:hover {
    background: var(--primary-btn);
}

.auth-switch {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

.auth-switch a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    margin-top: 4rem;
    padding: 3rem 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-align: center;
    width: 100%;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.footer-logo {
    font-family: 'Unbounded', sans-serif;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-primary);
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-logo:hover {
    color: var(--accent-color);
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-copyright {
    font-size: 0.8rem;
    opacity: 0.6;
}

.footer-tagline {
    font-size: 0.95rem;
    max-width: 400px;
    line-height: 1.6;
}

@media (max-width: 600px) {
    footer {
        padding: 2rem 1rem;
    }

    .footer-links {
        gap: 1rem;
    }
}