/* ========================================
   Reusable Components
   ======================================== */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: var(--fs-base);
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all var(--duration) var(--ease);
    text-align: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--duration) var(--ease);
    z-index: -1;
}

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

.btn-gold::before {
    background: var(--gold-gradient-hover);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold-lg);
}

.btn-gold:hover::before {
    opacity: 1;
}

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

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(var(--white-rgb), 0.3);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: rgba(var(--white-rgb), 0.1);
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-3px);
}

.btn-lg {
    padding: 18px 42px;
    font-size: var(--fs-md);
}

.btn-full {
    width: 100%;
}

/* Button magnetic effect placeholder class */
.magnetic-btn {
    transition: transform var(--duration-fast) var(--ease);
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all var(--duration) var(--ease);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

/* Glass Card */
.glass-card {
    background: rgba(var(--white-rgb), 0.06);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(var(--white-rgb), 0.1);
    border-radius: var(--radius);
}

/* --- Tags --- */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--fs-sm);
    color: var(--text-light);
    padding: 6px 14px;
    background: var(--bg);
    border-radius: var(--radius-full);
    transition: all var(--duration) var(--ease);
}

.tag svg {
    color: var(--gold);
}

.tag:hover {
    background: rgba(var(--gold-rgb), 0.1);
    color: var(--gold-dark);
}

/* --- Preloader --- */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 24px;
    z-index: 9999;
    transition: opacity 0.6s var(--ease), visibility 0.6s var(--ease);
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-logo {
    width: 80px;
    height: 80px;
    color: var(--gold);
    animation: preloaderPulse 1.5s var(--ease) infinite;
}

.preloader-bar {
    width: 200px;
    height: 3px;
    background: rgba(var(--white-rgb), 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.preloader-bar::after {
    content: '';
    display: block;
    width: 40%;
    height: 100%;
    background: var(--gold-gradient);
    border-radius: 3px;
    animation: preloaderSlide 1.2s var(--ease) infinite;
}

@keyframes preloaderPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

@keyframes preloaderSlide {
    0% { transform: translateX(400%); }
    100% { transform: translateX(-100%); }
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--gold-gradient);
    color: var(--primary-dark);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    transition: all var(--duration) var(--ease-spring);
    box-shadow: var(--shadow-gold);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-to-top:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-gold-lg);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* --- Floating Decoration Elements --- */
.float-shape {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.07;
    filter: blur(1px);
}

.float-shape-1 {
    width: 300px;
    height: 300px;
    background: var(--gold);
    top: -100px;
    right: -100px;
    animation: floatShape 8s var(--ease) infinite alternate;
}

.float-shape-2 {
    width: 200px;
    height: 200px;
    background: var(--gold);
    bottom: -50px;
    left: -50px;
    animation: floatShape 10s var(--ease) infinite alternate-reverse;
}

.float-shape-3 {
    width: 150px;
    height: 150px;
    background: var(--gold-light);
    top: 40%;
    left: 10%;
    animation: floatShape 12s var(--ease) infinite alternate;
}

@keyframes floatShape {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(30px, -30px) rotate(45deg); }
}