:root {
    --light-square: #f0d9b5;
    --dark-square: #b58863;
    --bg-dark: #1a1a1a;
    --bg-darker: #0d0d0d;
    --gold: #d4a843;
    --gold-light: #f0d078;
    --text-light: #e8e0d5;
    --text-muted: #a09888;
    --accent: #c8a45c;
}

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

body {
    font-family: 'Georgia', 'Times New Roman', 'Playfair Display', serif;
    background: var(--bg-darker);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
    cursor: default;
    -webkit-user-select: none;
    user-select: none;
    padding: 1rem;
}

.chess-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.06;
    background-image:
        repeating-linear-gradient(0deg,
            transparent,
            transparent 60px,
            rgba(180, 150, 100, 0.3) 60px,
            rgba(180, 150, 100, 0.3) 61px),
        repeating-linear-gradient(90deg,
            transparent,
            transparent 60px,
            rgba(180, 150, 100, 0.3) 60px,
            rgba(180, 150, 100, 0.3) 61px);
    background-size: 120px 120px;
    animation: bgDrift 40s linear infinite;
}

@keyframes bgDrift {
    0% { background-position: 0 0; }
    100% { background-position: 120px 120px; }
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    font-size: 2rem;
    opacity: 0;
    animation: floatUp 8s infinite;
    color: rgba(212, 168, 67, 0.4);
}

@keyframes floatUp {
    0% {
        transform: translateY(110vh) rotate(0deg) scale(0.5);
        opacity: 0;
    }
    5% { opacity: 0.6; }
    50% { opacity: 0.3; }
    90% { opacity: 0.05; }
    100% {
        transform: translateY(-20vh) rotate(360deg) scale(1.3);
        opacity: 0;
    }
}

.main-container {
    position: relative;
    z-index: 1;
    text-align: center;
    width: 100%;
    max-width: 700px;
    padding: 0 1rem;
}

.ornate-border {
    position: relative;
    border: 3px solid var(--accent);
    border-radius: 4px;
    padding: clamp(1.8rem, 5vw, 3rem) clamp(1.2rem, 4vw, 2.5rem) clamp(1.5rem, 4vw, 2.5rem);
    background: rgba(20, 18, 14, 0.85);
    box-shadow:
        0 0 0 8px rgba(20, 18, 14, 0.7),
        0 0 0 11px rgba(180, 150, 100, 0.25),
        0 30px 80px rgba(0, 0, 0, 0.6),
        inset 0 0 120px rgba(0, 0, 0, 0.3);
    --clip-size: clamp(15px, 4vw, 25px);
    clip-path: polygon(
        0 var(--clip-size),
        var(--clip-size) 0,
        calc(100% - var(--clip-size)) 0,
        100% var(--clip-size),
        100% calc(100% - var(--clip-size)),
        calc(100% - var(--clip-size)) 100%,
        var(--clip-size) 100%,
        0 calc(100% - var(--clip-size))
    );
}

.ornate-border::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    bottom: 12px;
    border: 1px solid rgba(200, 164, 92, 0.35);
    border-radius: 2px;
    pointer-events: none;
    --clip-inner: clamp(12px, 3vw, 18px);
    clip-path: polygon(
        0 var(--clip-inner),
        var(--clip-inner) 0,
        calc(100% - var(--clip-inner)) 0,
        100% var(--clip-inner),
        100% calc(100% - var(--clip-inner)),
        calc(100% - var(--clip-inner)) 100%,
        var(--clip-inner) 100%,
        0 calc(100% - var(--clip-inner))
    );
}

.corner-ornament {
    position: absolute;
    width: clamp(24px, 5vw, 35px);
    height: clamp(24px, 5vw, 35px);
    pointer-events: none;
}
.corner-ornament::before,
.corner-ornament::after {
    content: '';
    position: absolute;
    background: var(--gold);
    border-radius: 50%;
}
.corner-ornament::before {
    width: clamp(7px, 1.5vw, 10px);
    height: clamp(7px, 1.5vw, 10px);
}
.corner-ornament::after {
    width: clamp(4px, 0.8vw, 5px);
    height: clamp(4px, 0.8vw, 5px);
    background: var(--gold-light);
}

.corner-tl { top: -5px; left: -5px; }
.corner-tl::before { top: 0; left: 0; }
.corner-tl::after { top: 14px; left: 14px; }

.corner-tr { top: -5px; right: -5px; }
.corner-tr::before { top: 0; right: 0; }
.corner-tr::after { top: 14px; right: 14px; }

.corner-bl { bottom: -5px; left: -5px; }
.corner-bl::before { bottom: 0; left: 0; }
.corner-bl::after { bottom: 14px; left: 14px; }

.corner-br { bottom: -5px; right: -5px; }
.corner-br::before { bottom: 0; right: 0; }
.corner-br::after { bottom: 14px; right: 14px; }

.title-container {
    margin-bottom: 1.5rem;
}

.crown-icon {
    font-size: clamp(5rem, 15vw, 5rem);
    display: block;
    margin-bottom: 1rem;
    animation: crownGlow 3s ease-in-out infinite;
    color: #ffffff !important;
    font-family: "Segoe UI", "Arial", "Georgia", "Times New Roman", monospace;
    font-variant-emoji: text;
}

@keyframes crownGlow {
    0%, 100% {
        filter: drop-shadow(0 0 20px rgba(212, 168, 67, 0.5));
        transform: translateY(0);
    }
    50% {
        filter: drop-shadow(0 0 35px rgba(240, 208, 120, 0.8));
        transform: translateY(-8px);
    }
}

.main-title {
    font-size: clamp(1.8rem, 7vw, 3rem);
    font-weight: bold;
    color: var(--text-light);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-shadow:
        0 0 40px rgba(200, 164, 92, 0.5),
        0 2px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.subtitle {
    font-size: clamp(0.9rem, 2.5vw, 1.1rem);
    color: var(--text-muted);
    letter-spacing: 0.15em;
    margin-top: 0.3rem;
    font-style: italic;
}

.divider {
    width: clamp(80px, 20vw, 120px);
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: 1.5rem auto;
    position: relative;
}

.divider::after {
    content: '♔';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(20, 18, 14, 0.9);
    padding: 0 12px;
    color: var(--gold);
    font-size: clamp(1rem, 3vw, 1.3rem);
}

.description {
    color: var(--text-muted);
    font-size: clamp(0.9rem, 2.2vw, 1.05rem);
    line-height: 1.7;
    margin-bottom: 2rem;
    letter-spacing: 0.03em;
}

.description span {
    color: var(--gold-light);
    font-weight: bold;
}

.btn-enter {
    display: inline-block;
    padding: clamp(0.7rem, 2vw, 1rem) clamp(1.5rem, 6vw, 3rem);
    font-size: clamp(0.9rem, 2.5vw, 1.15rem);
    font-family: inherit;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #1a1a1a;
    background: linear-gradient(180deg, #f0d078 0%, #c8a45c 50%, #a07830 100%);
    border: 2px solid #8b6914;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow:
        0 8px 25px rgba(180, 140, 60, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    font-weight: bold;
    white-space: nowrap;
}

.btn-enter:hover {
    transform: translateY(-3px);
    box-shadow:
        0 14px 35px rgba(200, 160, 60, 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    color: #0d0d0d;
    background: linear-gradient(180deg, #f8e8a0 0%, #d4b868 50%, #b08838 100%);
}

.btn-enter:active {
    transform: translateY(1px);
    box-shadow:
        0 4px 15px rgba(180, 140, 60, 0.3),
        inset 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: all 0.1s ease;
}

.btn-enter::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(30deg);
    transition: all 0.6s ease;
    pointer-events: none;
}

.btn-enter:hover::after {
    left: 100%;
}

.side-pieces {
    position: fixed;
    pointer-events: none;
    z-index: 0;
    font-size: clamp(1.5rem, 10vw, 5rem);
    opacity: 0.12;
    animation: sideFloat 6s ease-in-out infinite;
}

.piece-left {
    left: 3%;
    top: 50%;
    transform: translateY(-50%);
    animation-delay: 0s;
}
.piece-right {
    right: 3%;
    top: 50%;
    transform: translateY(-50%);
    animation-delay: -3s;
}

@keyframes sideFloat {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    25% { transform: translateY(-55%) translateX(8px); }
    50% { transform: translateY(-45%) translateX(-4px); }
    75% { transform: translateY(-52%) translateX(6px); }
}

.footer-note {
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: clamp(0.7rem, 1.5vw, 0.8rem);
    letter-spacing: 0.06em;
    opacity: 0.6;
}

@keyframes rippleEffect {
    0% { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(25); opacity: 0; }
}

@media (max-width: 768px) {
    .side-pieces {
        opacity: 0.08;
        font-size: 2.8rem;
    }
    .piece-left { left: 1%; }
    .piece-right { right: 1%; }
    
    .ornate-border {
        border-width: 2px;
    }
    
    .btn-enter {
        white-space: normal;
    }
}

@media (max-width: 480px) {
    .side-pieces {
        display: none;
    }
    
    .ornate-border {
        padding: 1.5rem 1rem 1.2rem;
        border-width: 2px;
        box-shadow:
            0 0 0 5px rgba(20, 18, 14, 0.7),
            0 0 0 7px rgba(180, 150, 100, 0.25),
            0 20px 50px rgba(0, 0, 0, 0.6),
            inset 0 0 60px rgba(0, 0, 0, 0.3);
    }
    
    .btn-enter {
        padding: 0.7rem 1.8rem;
    }
    
    .main-title {
        letter-spacing: 0.05em;
    }
}

@media (max-width: 360px) {
    .ornate-border {
        padding: 1.2rem 0.8rem 1rem;
    }
    
    .btn-enter {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }
}