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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 40px 20px;
    transition: background 0.3s, color 0.3s;
}

h1 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 2.5em;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px 30px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
}

header div {
    flex: 1;
}

.container {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.status-bar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-bottom: 30px;
    font-size: 18px;
    font-weight: bold;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    color: #333;
}

.grid {
    display: flex;
    flex-direction: column;
    gap: 18px;
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    min-width: 300px;
}

.word-row {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.word-row input {
    width: 55px;
    height: 55px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    text-transform: uppercase;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #fff;
    color: #333;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.word-row input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transform: scale(1.05);
}

.clues {
    max-width: 380px;
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    color: #333;
}

.clues h2 {
    margin-bottom: 25px;
    font-size: 1.8em;
    color: #667eea;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

.clues h3 {
    margin-top: 25px;
    margin-bottom: 12px;
    color: #764ba2;
    font-size: 1.2em;
}

.clues ul {
    margin-left: 25px;
    margin-top: 10px;
    list-style: none;
}

.clues li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
    color: #555;
}

.clues li:before {
    content: "◆";
    position: absolute;
    left: 0;
    color: #667eea;
}

button {
    margin-top: 20px;
    margin-right: 12px;
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-weight: bold;
    font-size: 1em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

button:active {
    transform: translateY(0);
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 25px;
    flex-wrap: wrap;
}

.btn-primary {
    flex: 1;
    min-width: 150px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.btn-secondary {
    flex: 1;
    min-width: 150px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.btn-secondary:hover {
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.5);
}

#result {
    margin-top: 30px;
    font-size: 18px;
    font-weight: bold;
    padding: 15px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-left: 4px solid #667eea;
    border-radius: 8px;
    color: #333;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ✅ Validation colors */
.correct {
    border-color: #22c55e !important;
    background: #f0fdf4 !important;
    color: #16a34a !important;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3) !important;
}

.incorrect {
    border-color: #ef4444 !important;
    background: #fef2f2 !important;
    color: #dc2626 !important;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3) !important;
}

/* ✅ Dark theme */
.dark-theme {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #eee;
}

.dark-theme header {
    background: rgba(0, 0, 0, 0.3);
}

.dark-theme h1 {
    color: #fff;
}

.dark-theme .grid {
    background: rgba(30, 30, 50, 0.95);
}

.dark-theme .word-row input {
    background: #2a2a4a;
    color: #eee;
    border-color: #444;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.dark-theme .word-row input:focus {
    border-color: #667eea;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.5);
}

.dark-theme .clues {
    background: rgba(30, 30, 50, 0.95);
    color: #eee;
}

.dark-theme .clues h2,
.dark-theme .clues h3 {
    color: #667eea;
}

.dark-theme .clues li {
    color: #bbb;
}

.dark-theme .status-bar {
    background: rgba(30, 30, 50, 0.95);
    color: #eee;
}

.dark-theme #result {
    background: rgba(102, 126, 234, 0.15);
    color: #bbb;
}

#themeToggle {
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
    font-weight: bold;
}

#themeToggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

#timerToggle {
    margin-left: 15px;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    font-weight: bold;
    margin-top: 0;
    margin-right: 0;
}

#timerToggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

#timerToggle:active {
    transform: translateY(0);
}

/* Trophy container */
.trophy {
    font-size: 120px;
    text-align: center;
    margin-top: 20px;
    margin-bottom: 20px;
    animation: bounce 1s infinite, glow 2s infinite;
}

/* Bounce animation */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.1);
    }
}

/* Glow animation */
@keyframes glow {
    0% {
        text-shadow: 0 0 10px gold, 0 0 20px orange, 0 0 30px yellow;
        filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.5));
    }
    50% {
        text-shadow: 0 0 30px gold, 0 0 40px orange, 0 0 50px yellow;
        filter: drop-shadow(0 0 25px rgba(255, 215, 0, 0.8));
    }
    100% {
        text-shadow: 0 0 10px gold, 0 0 20px orange, 0 0 30px yellow;
        filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.5));
    }
}

/* Optional confetti effect */
.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    background: gold;
    animation: fall 3s linear infinite;
}

@keyframes fall {
    0% { transform: translateY(-100px) rotate(0deg); opacity: 1; }
    100% { transform: translateY(600px) rotate(360deg); opacity: 0; }
}

/* Custom scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2, #667eea);
}

/* ✅ Responsive layout */
@media (max-width: 968px) {
    .container {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .grid {
        width: 100%;
        max-width: 400px;
    }

    .clues {
        width: 100%;
        max-width: 400px;
    }

    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    h1 {
        font-size: 2em;
    }
}

@media (max-width: 640px) {
    body {
        padding: 20px 15px;
    }

    header {
        padding: 15px 20px;
    }

    .grid {
        padding: 25px 20px;
    }

    .clues {
        padding: 25px 20px;
    }

    .word-row input {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }

    .word-row {
        gap: 6px;
    }

    .status-bar {
        padding: 15px 20px;
        font-size: 16px;
        flex-direction: column;
        gap: 10px;
    }

    button {
        padding: 10px 20px;
        font-size: 0.95em;
        margin-right: 8px;
    }

    .button-group {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        min-width: unset;
    }

    .trophy {
        font-size: 80px;
    }
}