/* ============================================
   SENTRA DESIGN — COMPONENTS.CSS (REVISED)
   Komponen UI: dynamic background, page loader (ring fix),
   language toggle, hamburger base + desktop safety,
   back to top, custom cursor
   ============================================ */

/* ============================================
   DYNAMIC BACKGROUND
   ============================================ */
.dynamic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}
.dynamic-bg canvas { width: 100%; height: 100%; }
.bg-gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        rgba(10, 22, 40, 0.02) 0%,
        rgba(201, 169, 97, 0.015) 50%,
        rgba(42, 90, 140, 0.02) 100%);
    animation: gradientShift 15s ease infinite;
}
@keyframes gradientShift {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ============================================
   PAGE LOADER
   REVISED: ring konsentris ke logo + counter di
   lintasan bersih di bawah ring (tidak tertimpa)
   ============================================ */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    /* REVISED: Sinkron dengan loader.js (transform translateY) */
    transition: transform 0.7s cubic-bezier(0.76, 0, 0.24, 1), visibility 0s linear 0.7s;
    will-change: transform;
}
.page-loader.hidden {
    transform: translateY(-100%); /* Tirai naik ke atas */
    visibility: hidden;
}
.loader-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, var(--color-primary-light) 0%, var(--color-primary) 70%);
}
.loader-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
}
/* REVISED: koordinat eksplisit → ring memusat ke logo (120px).
   (120 - 200) / 2 = -40 → pusat ring = pusat logo.
   Centering via margin negatif agar transform tetap bebas
   untuk animasi rotate. */
.loader-ring {
    position: absolute;
    top: -40px;
    left: 50%;
    margin-left: -100px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--color-secondary);
    border-right-color: var(--color-secondary);
    animation: ringRotate 2s linear infinite;
    pointer-events: none;
}
.loader-ring::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-bottom-color: var(--color-accent);
    border-left-color: var(--color-accent);
    animation: ringRotate 1.5s linear infinite reverse;
}
.loader-ring-inner {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border-radius: 50%;
    border: 1px solid rgba(201, 169, 97, 0.3);
    animation: ringPulse 2s ease-in-out infinite;
}
@keyframes ringRotate { to { transform: rotate(360deg); } }
@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 1; }
}
/* REVISED: margin-bottom 56px → progress bar + counter
   berada di y ≈ 208px, di bawah ring (berakhir di 160px). */
.loader-logo-wrap {
    position: relative;
    z-index: 3;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(201, 169, 97, 0.2);
    animation: logoFloat 3s ease-in-out infinite;
    margin-bottom: 56px;
}
@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.loader-logo { width: 80px; height: 80px; object-fit: contain; }
.loader-progress-container {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}
.loader-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-secondary-light));
    border-radius: 2px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--color-secondary);
}
.loader-percent {
    font-family: var(--font-accent);
    font-size: var(--text-lg);
    color: var(--color-secondary);
    letter-spacing: 3px;
}
.loader-text {
    font-family: var(--font-accent);
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 4px;
    text-transform: uppercase;
}

/* ============================================
   LANGUAGE TOGGLE - SINGLE BUTTON (PREMIUM)
   ============================================ */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    transition: var(--transition-base);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}
.lang-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(201, 169, 97, 0.2), transparent);
    transition: left 0.5s ease;
}
.lang-toggle:hover::before { left: 100%; }
.lang-toggle:hover {
    background: rgba(201, 169, 97, 0.15);
    border-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.2);
}
.lang-toggle:active { transform: translateY(0); }
.lang-toggle-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 20px;
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}
.lang-toggle-icon .flag-icon {
    width: 100%;
    height: 100%;
    border-radius: 2px;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.lang-toggle:hover .flag-icon { transform: scale(1.1); }
.lang-toggle-label {
    font-family: var(--font-accent);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 1px;
    text-transform: uppercase;
    min-width: 24px;
    text-align: center;
}
.lang-toggle.switching .flag-icon { animation: flagFlip 0.5s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes flagFlip {
    0% { transform: rotateY(0deg) scale(1); }
    50% { transform: rotateY(90deg) scale(0.8); }
    100% { transform: rotateY(0deg) scale(1); }
}
.lang-toggle.switching .lang-toggle-label { animation: labelFade 0.5s ease; }
@keyframes labelFade {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.flag-icon { width: 22px; height: 13px; border-radius: 2px; overflow: hidden; }

/* ============================================
   HAMBURGER TOGGLE - HIDDEN DI DESKTOP
   ============================================ */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}
.toggle-line {
    width: 28px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-fast);
}
.nav-toggle.active .toggle-line:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active .toggle-line:nth-child(2) { opacity: 0; }
.nav-toggle.active .toggle-line:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   DESKTOP SAFETY - HIDE HAMBURGER ELEMENTS
   Mencegah elemen hamburger muncul di desktop
   ============================================ */
.menu-header, .menu-close, .close-line, .menu-logo,
.menu-footer, .menu-footer-info, .menu-footer-social,
.footer-label, .footer-email, .footer-phone,
.menu-number, .menu-text, .menu-line, .menu-badge {
    display: none;
}
/* Opsional: tampilkan teks menu di desktop */
.nav-menu .menu-text {
    display: inline;
    font-family: var(--font-accent);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-white);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border: 1px solid var(--color-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-fast);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; stroke: var(--color-secondary); fill: none; stroke-width: 2; }
.back-to-top:hover { background: var(--color-secondary); transform: translateY(-5px); }
.back-to-top:hover svg { stroke: var(--color-primary); }

/* ============================================
   CUSTOM CURSOR
   ============================================ */
.custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transition: transform 0.15s ease, opacity 0.15s ease;
    mix-blend-mode: difference;
}
.custom-cursor.hover { transform: scale(2); background: rgba(201, 169, 97, 0.1); }
@media (max-width: 900px) { .custom-cursor { display: none; } }