@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --primary-grad: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --primary: #6366f1;
    --bg-app: #f1f5f9;
    --card-white: rgba(255, 255, 255, 0.9);
    --text-dark: #0f172a;
    --text-light: #64748b;
    --accent: #f43f5e;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    transition: all 0.2s ease-in-out;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-app);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.15) 0px, transparent 50%);
    margin: 0;
    padding-bottom: 90px;
    color: var(--text-dark);
    min-height: 100vh;
}

/* Header Modern */
nav {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 1.2rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

nav a.logo {
    font-weight: 800;
    font-size: 1.4rem;
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

/* Container Webview */
.container {
    width: 92%;
    max-width: 480px;
    margin: 1rem auto;
}

/* Card Modern (Neumorphism Mix) */
.card {
    background: var(--card-white);
    padding: 1.5rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.2rem;
}

.card:active {
    transform: scale(0.97);
}

/* Search Bar & Inputs */
input, textarea {
    width: 100%;
    padding: 1.1rem;
    border: 2px solid transparent;
    border-radius: 18px;
    background: #ffffff;
    font-size: 1rem;
    font-weight: 500;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Floating Action Button Style */
.btn {
    background: var(--primary-grad);
    color: white;
    padding: 1.1rem;
    border-radius: 18px;
    border: none;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 8px 20px -6px rgba(99, 102, 241, 0.6);
}

.btn-red {
    background: linear-gradient(135deg, #f43f5e 0%, #fb7185 100%);
    box-shadow: 0 8px 20px -6px rgba(244, 63, 94, 0.4);
}

/* Lirik Display */
.lirik-text {
    line-height: 2;
    font-size: 1.1rem;
    font-weight: 500;
    text-align: center;
    color: #334155;
    background: linear-gradient(to bottom, #ffffff, #f8fafc);
    padding: 20px;
    border-radius: 20px;
}

/* Bottom Nav Premium */
.bottom-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 400px;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    display: flex;
    justify-content: space-around;
    padding: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    z-index: 2000;
}

.bottom-nav a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.bottom-nav a.active {
    color: #94a3b8;
}

.nav-icon {
    font-size: 1.4rem;
}

/* UI Badge */
.badge {
    background: var(--primary-soft);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}