@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

:root {
    --bg-deep: #030712;
    --card-bg: rgba(17, 24, 39, 0.75);
    --border-color: rgba(255, 255, 255, 0.12);
    --primary-gradient: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a855f7 100%);
    --accent-cyan: #38bdf8;
    --accent-purple: #a855f7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    perspective: 1000px;
}

/* Background 4D & Particles */
.space-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(circle at 50% 20%, #0f172a 0%, #030712 100%);
}

.blob {
    position: absolute;
    filter: blur(100px);
    opacity: 0.45;
    border-radius: 50%;
    animation: floatBlob 12s infinite alternate ease-in-out;
}

.blob-1 { width: 400px; height: 400px; background: #0284c7; top: -10%; left: -10%; }
.blob-2 { width: 450px; height: 450px; background: #7c3aed; bottom: -15%; right: -10%; animation-delay: -4s; }
.blob-3 { width: 300px; height: 300px; background: #ec4899; top: 40%; left: 60%; animation-delay: -8s; }

@keyframes floatBlob {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, 60px) scale(1.15); }
}

.grid-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Wrapper & Card 3D Spatial Effects */
.wrapper-4d {
    width: 100%;
    max-width: 720px;
    perspective: 1200px;
}

.floating-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 16px;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
}

.pulse-dot {
    width: 8px; height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 15px var(--accent-cyan); }
    100% { transform: scale(0.95); opacity: 0.8; }
}

/* Glass Card 3D Container */
.container-card {
    position: relative;
    background: var(--card-bg);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 42px 34px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transform-style: preserve-3d;
    transition: transform 0.15s cubic-bezier(0.2, 0, 0.2, 1), box-shadow 0.3s ease;
    overflow: hidden;
}

.glare-effect {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.15), transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Header */
.header { text-align: center; margin-bottom: 36px; transform: translateZ(30px); }
.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 14px;
}

.logo-icon-wrap {
    width: 46px; height: 46px;
    background: var(--primary-gradient);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    color: white;
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.3);
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header h1 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; line-height: 1.25; }
.header p { color: var(--text-muted); font-size: 1rem; line-height: 1.6; max-width: 560px; margin: 0 auto; }

/* Input Search Box */
.search-box-wrap {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 30px;
    transform: translateZ(40px);
}

@media (min-width: 600px) {
    .search-box-wrap { flex-direction: row; }
}

.input-wrapper {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute; left: 18px;
    color: var(--accent-cyan);
}

.input-wrapper input {
    width: 100%;
    padding: 16px 50px;
    background: rgba(3, 7, 18, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    color: #fff;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 25px rgba(56, 189, 248, 0.3);
}

.action-btn-inner {
    position: absolute; right: 14px;
    background: rgba(255, 255, 255, 0.08);
    border: none; color: var(--text-muted);
    width: 34px; height: 34px;
    border-radius: 10px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: 0.2s;
}

.action-btn-inner:hover { background: rgba(255, 255, 255, 0.2); color: #fff; }

/* Buttons & Click Ripple Effect */
.ripple-btn {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: rippleAnim 0.6s linear;
    pointer-events: none;
}

@keyframes rippleAnim {
    to { transform: scale(4); opacity: 0; }
}

#downloadBtn {
    display: flex; align-items: center; justify-content: center;
    gap: 10px; padding: 16px 32px;
    background: var(--primary-gradient);
    color: white; font-weight: 700; font-size: 1rem;
    border: none; border-radius: 16px;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

#downloadBtn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.6);
}

#downloadBtn:active {
    transform: translateY(1px) scale(0.98);
}

/* Hidden Utility Class */
.hidden { display: none !important; }

/* Loader Hologram */
.loader-box { text-align: center; padding: 35px; transform: translateZ(30px); }
.hologram-spinner {
    position: relative;
    width: 60px; height: 60px;
    margin: 0 auto 16px;
}

.hologram-spinner .ring {
    position: absolute;
    width: 100%; height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spinRing 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.hologram-spinner .ring:nth-child(2) {
    border-top-color: var(--accent-purple);
    animation-direction: reverse;
    animation-duration: 0.8s;
}

.core-dot {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 12px; height: 12px;
    background: #fff; border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-cyan);
}

@keyframes spinRing { to { transform: rotate(360deg); } }
.loading-text { color: var(--accent-cyan); font-size: 0.95rem; font-weight: 500; }

/* Error Box */
.error-box {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 16px 20px; border-radius: 16px;
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 24px;
    transform: translateZ(30px);
}

/* Result Card 3D */
.result-card {
    background: rgba(3, 7, 18, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 30px;
    transform: translateZ(50px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    animation: popup 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popup {
    from { opacity: 0; transform: translateZ(10px) scale(0.9); }
    to { opacity: 1; transform: translateZ(50px) scale(1); }
}

.card-3d-inner { display: flex; flex-direction: column; gap: 20px; }
@media (min-width: 540px) { .card-3d-inner { flex-direction: row; align-items: center; } }

.thumbnail-wrapper {
    position: relative;
    width: 100%; max-width: 150px;
    aspect-ratio: 9/16;
    border-radius: 14px; overflow: hidden;
    margin: 0 auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.thumbnail-wrapper img { width: 100%; height: 100%; object-fit: cover; }

.badge-hd {
    position: absolute; top: 8px; left: 8px;
    background: rgba(0, 0, 0, 0.75); color: #38bdf8;
    font-size: 0.7rem; font-weight: 700;
    padding: 3px 8px; border-radius: 6px;
}

.video-info { flex: 1; display: flex; flex-direction: column; gap: 12px; }
.video-info h3 { font-size: 1.15rem; color: #fff; line-height: 1.4; }
.meta-tags { display: flex; gap: 12px; font-size: 0.8rem; color: var(--text-muted); }
.meta-tags i { color: var(--accent-cyan); }

.button-group { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }

.btn {
    display: flex; align-items: center; justify-content: center;
    gap: 10px; padding: 12px 18px; border-radius: 12px;
    text-decoration: none; font-weight: 600; font-size: 0.9rem;
    transition: transform 0.2s ease, background 0.2s ease;
}

.btn-primary { background: #22c55e; color: #fff; box-shadow: 0 6px 20px rgba(34, 197, 94, 0.3); }
.btn-primary:hover { background: #16a34a; transform: translateY(-2px); }

.btn-secondary { background: rgba(255, 255, 255, 0.08); color: #f1f5f9; border: 1px solid rgba(255, 255, 255, 0.1); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.15); transform: translateY(-2px); }

/* Features Grid 4D */
.features-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
    margin-top: 10px;
    transform: translateZ(30px);
}
@media (max-width: 600px) { .features-grid { grid-template-columns: 1fr; } }

.feature-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px; padding: 18px 14px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: rgba(56, 189, 248, 0.4);
    background: rgba(56, 189, 248, 0.05);
}

.feature-item i {
    font-size: 1.4rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px; display: inline-block;
}

.feature-item h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; color: #fff; }
.feature-item p { font-size: 0.8rem; color: var(--text-muted); }

/* Footer */
.footer {
    margin-top: 36px; text-align: center;
    color: var(--text-muted); font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 20px;
    transform: translateZ(20px);
}

.disclaimer {
    font-size: 0.75rem; color: var(--text-muted);
    margin-top: 10px; line-height: 1.5; opacity: 0.7;
    max-width: 620px; margin-left: auto; margin-right: auto;
}

/* Styling Bagian Tutorial di Halaman Utama */
.tutorial-section {
    margin: 35px 0 25px 0;
    transform: translateZ(30px);
}

.tutorial-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tutorial-title i {
    color: var(--accent-cyan);
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

@media (max-width: 768px) {
    .tutorial-grid {
        grid-template-columns: 1fr;
    }
}

.tutorial-card-item {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 22px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
/* Penyempurnaan Tampilan Tutorial di Halaman Utama */
.tutorial-section {
    margin: 40px 0 30px 0;
    transform: translateZ(30px);
}

.tutorial-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tutorial-title i {
    color: var(--accent-cyan);
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

@media (max-width: 768px) {
    .tutorial-grid {
        grid-template-columns: 1fr;
    }
}

.tutorial-card-item {
    position: relative;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 24px 18px 20px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tutorial-card-item:hover {
    transform: translateY(-6px);
    border-color: rgba(56, 189, 248, 0.4);
    background: rgba(56, 189, 248, 0.04);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.step-badge {
    position: absolute;
    top: -12px;
    right: 18px;
    background: var(--primary-gradient);
    color: white;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.4);
}

.tutorial-card-item h3 {
    font-size: 1.05rem;
    color: #fff;
    font-weight: 600;
}

.tutorial-card-item p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.example-box {
    background: rgba(56, 189, 248, 0.06);
    border: 1px dashed rgba(56, 189, 248, 0.3);
    border-radius: 8px;
    padding: 6px 10px;
    margin-top: 6px;
}

.example-box code {
    color: #38bdf8;
    font-family: monospace;
    font-size: 0.75rem;
    word-break: break-all;
}

.brand-logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}

.site-logo {
    width: 38px;
    height: 38px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.brand-name {
    font-size: 1.6rem;
    font-weight: 800;
    color: #ffffff;
}