:root {
    /* Color Palette */
    --pearl-beige: #e2d4b7;
    --grey-olive: #878171;
    --ash-grey: #a1a499;
    --silver: #b0bbbf;
    --ash-grey-2: #cadbc8;
    --shadow-grey: #37323e;
    --ivory-white: #f0f0f0;

    --bg-dark: var(--pearl-beige);
    --bg-darker: var(--pearl-beige);

    --primary: var(--shadow-grey);
    --primary-glow: transparent;
    --secondary: var(--grey-olive);
    --secondary-glow: transparent;

    --success: var(--ash-grey-2);
    --success-bg: var(--silver);
    --danger: var(--shadow-grey);
    --danger-bg: var(--silver);

    --card-bg: var(--ivory-white);
    --card-hover: var(--ash-grey-2);
    --card-border: var(--grey-olive);

    --text-main: var(--shadow-grey);
    --text-muted: var(--grey-olive);

    /* Typography */
    --font-ui: 'Inter', sans-serif;
    --font-font1: 'El Messiri', sans-serif;
    --font-font2: 'Vibes', cursive;
}

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

body {
    background-color: var(--bg-darker);
    color: var(--text-main);
    font-family: var(--font-ui);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 1rem;
    overflow-x: hidden;
    position: relative;
}

/* Background Effects */
.background-effects {
    display: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite alternate ease-in-out;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, rgba(56, 189, 248, 0) 70%);
}

.orb-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(139, 92, 246, 0) 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(5%, 5%);
    }
}

/* Layout */
.game-container {
    width: 100%;
    max-width: 1000px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2rem;
    width: 100%;
}

.title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    margin-bottom: 0.5rem;
    color: var(--shadow-grey);
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Timer & Level */
.stats-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    height: 60px;
}

.level-indicator {
    background: var(--grey-olive);
    border: 2px solid var(--shadow-grey);
    color: var(--ivory-white);
    padding: 0.6rem 1.8rem;
    border-radius: 999px;
    display: flex;
    align-items: baseline;
    gap: 0.8rem;
}

.level-num {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

.lang-name {
    font-size: 2.2rem;
    font-weight: 800;
}

.timer-wrapper {
    position: relative;
    background: var(--ivory-white);
    border: 1px solid var(--card-border);
    padding: 0.75rem 2rem;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
}

.timer {
    font-family: 'Inter', monospace;
    font-variant-numeric: tabular-nums;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.timer.penalty-active {
    color: var(--danger);
    text-shadow: 0 0 15px rgba(239, 68, 68, 0.6);
    animation: shake 0.4s cubic-bezier(.36, .07, .19, .97) both;
}

@keyframes shake {

    10%,
    90% {
        transform: translate3d(-1px, 0, 0);
    }

    20%,
    80% {
        transform: translate3d(2px, 0, 0);
    }

    30%,
    50%,
    70% {
        transform: translate3d(-4px, 0, 0);
    }

    40%,
    60% {
        transform: translate3d(4px, 0, 0);
    }
}

.penalty-text {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--danger);
    font-weight: 700;
    font-size: 1.2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.penalty-text.show {
    opacity: 1;
    transform: translateY(-50%) translateX(20px);
}

/* Buttons */
.btn {
    appearance: none;
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1rem 2.5rem;
    border-radius: 999px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn:hover {
    transform: translateY(-2px);
}

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

.primary-btn {
    background: var(--shadow-grey);
    color: var(--ivory-white);
}

.primary-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.primary-btn:hover::after {
    opacity: 1;
}

.secondary-btn {
    background: var(--silver);
    color: var(--shadow-grey);
    border: 1px solid var(--grey-olive);
}

.secondary-btn:hover {
    background: var(--ash-grey-2);
}

/* Play Area */
.play-area {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    display: none;
    /* hidden initially */
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.play-area.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

/* Font Sections */
.font-section {
    width: 100%;
    background: var(--pearl-beige);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem 2rem 2rem 2rem;
    position: relative;
}

.font-label {
    position: absolute;
    top: 15px;
    right: 20px;
    color: var(--text-muted);
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: none;
    margin-bottom: 0;
}

/* Card Grid */
.card-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.word-card {
    --scale: 1;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: calc(12px * var(--scale));
    padding: calc(1rem * var(--scale)) calc(1.5rem * var(--scale));
    font-size: 2.2rem;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    color: var(--text-main);
}

.word-card:hover {
    background: var(--card-hover);
    transform: translateY(-2px) scale(1.02);
}

.word-card.selected {
    background: var(--silver);
    border-color: var(--primary);
    transform: translateY(-2px) scale(1.05);
}

.word-card.matched {
    background: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
    pointer-events: none;
    animation: matchAnim 0.5s ease forwards;
}

@keyframes matchAnim {
    0% {
        transform: scale(1.05);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(0.95);
        opacity: 0.3;
    }
}

.word-card.error {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
    animation: shake 0.4s cubic-bezier(.36, .07, .19, .97) both;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    opacity: 0.5;
}

.divider .line {
    height: 1px;
    flex-grow: 1;
    background: linear-gradient(90deg, transparent, var(--text-muted), transparent);
}

.divider .diamond {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    transform: rotate(45deg);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(226, 212, 183, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--ivory-white);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
    width: 90%;
    max-width: 450px;
    text-align: center;
    transform: translateY(30px) scale(0.95);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--shadow-grey);
}

.score-card {
    background: var(--pearl-beige);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.time-label {
    color: var(--text-muted);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.final-time {
    font-family: 'Inter', monospace;
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.rating-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.rating-badge {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1;
    background: var(--primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transform: scale(0);
}

.modal-overlay.show .rating-badge {
    animation: popIn 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards 0.3s;
}

@keyframes popIn {
    0% {
        transform: scale(0);
    }

    70% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

.rating-description {
    color: var(--grey-olive);
    line-height: 1.1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
}

.rating-desc-large {
    font-size: 2.2rem;
    font-weight: 800;
    text-transform: uppercase;
}

.rating-desc-small {
    font-size: 1.2rem;
    font-weight: 500;
    opacity: 0.9;
    text-transform: none;
}

/* Responsive */
@media (max-width: 768px) {
    .title {
        font-size: 2.2rem;
    }

    .word-card {
        font-size: 1.8rem;
        padding: 0.8rem 1.2rem;
    }

    #grid2 .word-card {
        font-size: 2.4rem;
    }

    .font-section {
        padding: 1.5rem;
    }
}

.dev-mode-container {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--ivory-white);
    border: 1px solid var(--card-border);
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    z-index: 10;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dev-mode-container:hover {
    background: var(--silver);
    border-color: var(--shadow-grey);
}

.dev-mode-container.active {
    border-color: var(--primary);
    background: var(--ivory-white);
}

.dev-mode-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    user-select: none;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.dev-mode-container.active .dev-mode-label .label-text {
    color: var(--primary);
}

.shortcut-tip {
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.6;
}

.dev-mode-container.active .shortcut-tip {
    opacity: 0.8;
}

/* Switch styling */
.dev-mode-switch {
    position: relative;
    display: inline-block;
    width: 38px;
    height: 20px;
}

.dev-mode-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #475569;
    transition: .3s;
    border-radius: 20px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: var(--ivory-white);
    transition: .3s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--primary);
}

input:checked+.slider:before {
    transform: translateX(18px);
}

/* Responsive adjustment for Dev Mode Switch */
@media (max-width: 768px) {
    .dev-mode-container {
        bottom: 1rem;
        left: 50%;
        transform: translateX(-50%);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    }
}

/* Fullscreen Desktop Mode layout to keep cards in one row */
@media (min-width: 1025px) {
    .game-container {
        max-width: 1150px;
    }

    .word-card {
        padding: calc(0.8rem * var(--scale)) calc(1.2rem * var(--scale));
    }

    .card-grid {
        flex-wrap: nowrap;
        gap: 0.8rem;
    }
}