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

/* --- VARIABEL WARNA --- */
:root {
    --bg-color: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --card-bg: rgba(255, 255, 255, 0.6);
    --card-border: rgba(255, 255, 255, 0.8);
    --accent-color: #0ea5e9;
    --glow-color: rgba(14, 165, 233, 0.2);
    --bg-gradient: 
        radial-gradient(at 0% 0%, hsla(210, 100%, 95%, 1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(190, 100%, 90%, 1) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(280, 50%, 95%, 1) 0, transparent 50%);
    --profile-border: #f8fafc;
    --btn-shadow: rgba(0, 0, 0, 0.05);
    --alert-bg: rgba(239, 68, 68, 0.1);
    --alert-border: rgba(239, 68, 68, 0.3);
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --accent-color: #00f2fe;
    --glow-color: rgba(0, 242, 254, 0.2);
    --bg-gradient: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,0.2) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,0.2) 0, transparent 50%);
    --profile-border: #0f172a;
    --btn-shadow: transparent;
    --alert-bg: rgba(239, 68, 68, 0.15);
    --alert-border: rgba(239, 68, 68, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    transition: background-color 0.5s ease, color 0.5s ease;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-image: var(--bg-gradient);
    padding: 20px 0; /* Tambahan padding untuk layar kecil */
}

.container {
    width: 100%;
    max-width: 450px;
    padding: 40px 20px;
    text-align: center;
    animation: fadeIn 1s ease-out;
    position: relative;
}

/* Tombol Ganti Tema */
.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 6px -1px var(--btn-shadow);
    transition: all 0.3s ease;
    z-index: 10;
}

.theme-toggle:hover {
    transform: scale(1.1);
    color: var(--accent-color);
}

/* Bagian Profil */
.profile { margin-bottom: 25px; }

.profile-img-container {
    width: 110px;
    height: 110px;
    margin: 0 auto 15px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(45deg, var(--accent-color), #38bdf8); 
    animation: pulseGlow 2s infinite alternate;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--profile-border);
}

.name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
    letter-spacing: 1px;
}

.bio {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Papan Peringatan (Alert) */
.alert-box {
    background: var(--alert-bg);
    border: 1px solid var(--alert-border);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 25px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-align: left;
    backdrop-filter: blur(10px);
}

.alert-box i {
    color: #ef4444;
    font-size: 1.2rem;
    margin-top: 3px;
}

.alert-box p {
    font-size: 0.8rem;
    color: var(--text-main);
    line-height: 1.4;
}

/* Bagian Tombol Tautan */
.links-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.link-btn {
    display: flex;
    align-items: center;
    position: relative;
    background: var(--card-bg); 
    color: var(--text-main);
    text-decoration: none;
    padding: 14px 20px 14px 60px; /* Padding kiri lebih besar untuk ikon */
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 6px -1px var(--btn-shadow);
    transition: all 0.3s ease;
    overflow: hidden;
    text-align: left;
}

.link-btn i {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%); /* Agar posisi ikon benar-benar di tengah sumbu Y */
    font-size: 1.4rem;
    color: var(--accent-color);
    transition: all 0.3s ease;
}

.link-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.link-title {
    font-size: 1rem;
    font-weight: 600;
}

.link-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

.link-btn:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 15px -3px var(--glow-color); 
}

.link-btn:hover i {
    transform: translateY(-50%) scale(1.2);
}

.link-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--glow-color), transparent);
    transition: left 0.5s ease;
}

.link-btn:hover::before { left: 100%; }

/* Footer */
footer {
    margin-top: 40px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Keyframes */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
    from { box-shadow: 0 0 10px var(--glow-color); }
    to { box-shadow: 0 0 20px var(--accent-color); }
}