/* Sunwin Vietnam Casino - Eternal Golden Goblet Style */
/* 永恒金爵风格 - 复刻蒙特卡洛赌场的经典与尊贵 */

/* 重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 防止水平滚动 */
html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    position: relative;
}

/* 根变量 - 永恒金爵色彩系统 */
:root {
    --primary-black: #1a1a1a;          /* 哑光黑 */
    --charcoal-gray: #2b2b2b;          /* 深炭灰 */
    --champagne-gold: #d4af37;         /* 香槟金 */
    --brass-accent: #b8860b;           /* 黄铜色 */
    --ivory-white: #f5f5dc;            /* 象牙白 */
    --cream-white: #faf0e6;            /* 米白 */
    --text-light: #e0e0e0;             /* 浅色文字 */
    --text-dark: #333333;              /* 深色文字 */
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #b8860b 50%, #ffd700 100%);
    --gradient-black: linear-gradient(135deg, #1a1a1a 0%, #2b2b2b 100%);
    --shadow-elegant: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-subtle: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* 字体设置 */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Lato:wght@300;400;500;700&display=swap');

body {
    font-family: 'Lato', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background: var(--primary-black);
    background-image:
        radial-gradient(circle at 20% 20%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(184, 134, 11, 0.05) 0%, transparent 50%);
    min-height: 100vh;
}

/* 顶级标题字体 */
h1, h2, h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
}

/* 页面加载动画 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-black);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

.loader-content {
    text-align: center;
    color: var(--champagne-gold);
}

.golden-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(212, 175, 55, 0.3);
    border-top: 3px solid var(--champagne-gold);
    border-radius: 50%;
    animation: elegantSpin 1.5s ease-in-out infinite;
    margin: 0 auto 1rem;
}

@keyframes elegantSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Header - 顶部导航 */
header {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-elegant);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
    margin-right: 10px;
}

.main-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.main-menu > li > a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.main-menu > li > a:hover {
    color: var(--champagne-gold);
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-1px);
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(15px);
    min-width: 220px;
    border-radius: 8px;
    box-shadow: var(--shadow-elegant);
    border: 1px solid rgba(212, 175, 55, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    padding: 0.5rem 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.dropdown-menu a:hover {
    background: rgba(212, 175, 55, 0.1);
    color: var(--champagne-gold);
    padding-left: 2rem;
}

/* CTA按钮组 */
.header-cta {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-header {
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    cursor: pointer;
}

.btn-login {
    background: transparent;
    color: var(--champagne-gold);
    border: 2px solid var(--champagne-gold);
}

.btn-login:hover {
    background: var(--champagne-gold);
    color: var(--primary-black);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.3);
}

.btn-register {
    background: var(--gradient-gold);
    color: var(--primary-black);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
}

/* 移动端菜单切换按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--champagne-gold);
    transition: all 0.3s ease;
}

/* Hero区域 */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--gradient-black);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../imgs/casino_bg.png') center/cover no-repeat;
    opacity: 0.3;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.8) 0%,
        rgba(43, 43, 43, 0.6) 50%,
        rgba(26, 26, 26, 0.8) 100%);
    z-index: 2;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    position: relative;
    z-index: 3;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-shadow: 0 0 30px rgba(212, 175, 55, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn-hero {
    padding: 1.25rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.4s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--primary-black);
    box-shadow: var(--shadow-elegant);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--champagne-gold);
    border: 2px solid var(--champagne-gold);
}

.btn-secondary:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.2);
}

/* 主要内容区域 */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    overflow-x: hidden;
    width: 100%;
}

@media (max-width: 768px) {
    .main-content {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 0 0.75rem;
    }
}

/* 页面标题 */
.page-header {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--gradient-black);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    z-index: 1;
}

.page-header-content {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    font-size: 3rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

/* 内容块 */
.content-section {
    padding: 4rem 0;
}

.content-block {
    margin-bottom: 4rem;
    background: rgba(43, 43, 43, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(212, 175, 55, 0.1);
    transition: all 0.4s ease;
}

.content-block:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-elegant);
    border-color: rgba(212, 175, 55, 0.3);
}

.content-block.horizontal {
    display: flex;
    align-items: center;
    min-height: 400px;
}

.content-block.vertical {
    display: flex;
    flex-direction: column;
}

.block-image {
    flex: 0 0 45%;
    min-height: 350px;
    position: relative;
    overflow: hidden;
}

.content-block.vertical .block-image {
    width: 100%;
    min-height: 300px;
    flex: none;
}

.block-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    max-width: 100%;
    display: block;
}

.content-block:hover .block-image img {
    transform: scale(1.05);
}

.block-content {
    flex: 1;
    padding: 3rem;
}

.block-content h2 {
    font-size: 2.2rem;
    color: var(--champagne-gold);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.block-content h3 {
    font-size: 1.6rem;
    color: var(--champagne-gold);
    margin-bottom: 1rem;
    font-weight: 500;
}

.block-content p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.1rem;
    text-align: justify;
    margin-bottom: 1.5rem;
}

.block-content ul {
    color: var(--text-light);
    padding-left: 2rem;
    margin-bottom: 1.5rem;
}

.block-content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* 网格系统 */
.grid-section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    color: var(--champagne-gold);
    margin-bottom: 3rem;
    position: relative;
    font-weight: 600;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

.grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-item {
    background: rgba(43, 43, 43, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(212, 175, 55, 0.1);
    transition: all 0.4s ease;
    position: relative;
}

.grid-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-elegant);
    border-color: rgba(212, 175, 55, 0.3);
}

.grid-image {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.grid-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.grid-item:hover .grid-image img {
    transform: scale(1.08);
}

.grid-item h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    color: var(--champagne-gold);
    font-size: 1.4rem;
    font-weight: 600;
}

.grid-item p,
.item-content {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
    line-height: 1.7;
    text-align: justify;
    font-size: 1rem;
}

/* 特殊按钮和链接 */
.btn-gold {
    background: var(--gradient-gold);
    color: var(--primary-black);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    cursor: pointer;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.text-gold {
    color: var(--champagne-gold);
}

.text-highlight {
    background: rgba(212, 175, 55, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--champagne-gold);
}

/* Footer */
footer {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    color: var(--text-light);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    margin-top: 4rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    color: var(--champagne-gold);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    line-height: 1.6;
    font-size: 1rem;
}

.footer-section a:hover {
    color: var(--champagne-gold);
    padding-left: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding: 2rem 2rem 1rem;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
    margin-top: 3rem;
    color: rgba(224, 224, 224, 0.7);
    font-size: 0.9rem;
}

.payment-methods {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.payment-methods img {
    height: 30px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.payment-methods img:hover {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }

    .main-menu {
        gap: 1.5rem;
    }

    .grid-3 {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    header {
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(15px);
        border-bottom: 1px solid rgba(212, 175, 55, 0.3);
    }

    nav {
        padding: 0.75rem 0.75rem;
        display: grid;
        grid-template-columns: minmax(auto, 30%) 1fr minmax(30px, auto);
        align-items: center;
        gap: 0.5rem;
        max-width: 100%;
        overflow: hidden;
    }

    .logo {
        grid-column: 1;
        font-size: 1.3rem;
        display: flex;
        align-items: center;
        justify-self: start;
    }

    .logo img {
        height: 28px;
        margin-right: 6px;
    }

    .logo a {
        display: flex;
        align-items: center;
        white-space: nowrap;
    }

    .header-cta {
        grid-column: 2;
        justify-self: center;
        display: flex;
        gap: 0.3rem;
        margin: 0 0.3rem;
        min-width: 0;
    }

    .btn-header {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
        border-radius: 20px;
        white-space: nowrap;
        min-width: auto;
        letter-spacing: 0.3px;
    }

    .btn-login {
        background: transparent;
        color: var(--champagne-gold);
        border: 1.5px solid var(--champagne-gold);
    }

    .btn-register {
        background: var(--gradient-gold);
        color: var(--primary-black);
        border: none;
        font-weight: 600;
    }

    .menu-toggle {
        grid-column: 3;
        justify-self: end;
        display: flex;
        flex-direction: column;
        cursor: pointer;
        gap: 3px;
        padding: 5px;
        border-radius: 4px;
        background: rgba(212, 175, 55, 0.1);
        border: 1px solid rgba(212, 175, 55, 0.3);
        min-width: 30px;
        max-width: 35px;
        margin: 0;
    }

    .menu-toggle span {
        width: 18px;
        height: 2px;
        background: var(--champagne-gold);
        transition: all 0.3s ease;
        border-radius: 1px;
    }

    .menu-toggle:hover {
        background: rgba(212, 175, 55, 0.2);
    }

    /* 汉堡菜单动画 */
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .main-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(15px);
        flex-direction: column;
        padding: 1rem;
        gap: 0.5rem;
        border-top: 1px solid rgba(212, 175, 55, 0.2);
        z-index: 999;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    }

    .main-menu.active {
        display: flex;
        animation: slideDown 0.3s ease-out;
    }

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

    .main-menu > li > a {
        padding: 0.75rem 1rem;
        color: var(--text-light);
        text-decoration: none;
        border-radius: 8px;
        transition: all 0.3s ease;
        font-size: 0.9rem;
        display: block;
    }

    .main-menu > li > a:hover {
        background: rgba(212, 175, 55, 0.1);
        color: var(--champagne-gold);
        transform: translateX(5px);
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: rgba(43, 43, 43, 0.8);
        margin-top: 0.5rem;
        margin-left: 1rem;
        border-radius: 8px;
        border: 1px solid rgba(212, 175, 55, 0.1);
    }

    .dropdown-menu a {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        color: rgba(224, 224, 224, 0.9);
    }

    .dropdown-menu a:hover {
        color: var(--champagne-gold);
        background: rgba(212, 175, 55, 0.1);
    }

    .hero h1 {
        font-size: 2.5rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn-hero {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    .content-block.horizontal {
        flex-direction: column;
    }

    .block-image {
        flex: none;
        width: 100%;
    }

    .block-content {
        padding: 2rem;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0.5rem 0.5rem;
        gap: 0.3rem;
        grid-template-columns: minmax(auto, 35%) 1fr 32px;
    }

    .logo {
        font-size: 1.1rem;
    }

    .logo img {
        height: 24px;
        margin-right: 4px;
    }

    .header-cta {
        gap: 0.3rem;
        margin-right: 0.3rem;
    }

    .btn-header {
        padding: 0.35rem 0.65rem;
        font-size: 0.7rem;
        border-radius: 18px;
    }

    .menu-toggle {
        padding: 5px;
    }

    .menu-toggle span {
        width: 16px;
        height: 2px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .block-content {
        padding: 1.5rem;
    }

    .grid-item h3 {
        font-size: 1.2rem;
    }

    .main-menu {
        padding: 0.8rem;
        gap: 0.3rem;
    }

    .main-menu > li > a {
        padding: 0.6rem 0.8rem;
        font-size: 0.85rem;
    }

    .dropdown-menu {
        margin-left: 0.8rem;
    }

    .dropdown-menu a {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* 特殊效果和动画 - 修复版本 */
.content-block, .grid-item {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

.fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.shimmer-effect {
    background: linear-gradient(90deg,
        var(--champagne-gold) 0%,
        #ffd700 50%,
        var(--champagne-gold) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s ease-in-out infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes shimmer {
    0% { background-position: 200% center; }
    100% { background-position: -200% center; }
}

/* 高级质感增强 */
.luxury-texture {
    background-image:
        radial-gradient(circle at 1px 1px, rgba(212, 175, 55, 0.15) 1px, transparent 0);
    background-size: 20px 20px;
}

.velvet-shadow {
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 8px 16px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(212, 175, 55, 0.1);
}

.golden-border {
    border: 1px solid rgba(212, 175, 55, 0.3);
    position: relative;
}

.golden-border::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: var(--gradient-gold);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.golden-border:hover::before {
    opacity: 0.3;
}