:root {
    --primary: #14b8a6; /* Tosca / Teal */
    --primary-hover: #0d9488;
    --bg-light: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(20, 184, 166, 0.15);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --accent: #0ea5e9;
    --shadow-soft: 0 10px 25px -5px rgba(20, 184, 166, 0.1), 0 8px 10px -6px rgba(20, 184, 166, 0.1);
}

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

body {
    background-color: var(--bg-light);
    background-image: 
        radial-gradient(at 0% 0%, rgba(20, 184, 166, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(14, 165, 233, 0.05) 0px, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden; /* Mencegah scroll kanan-kiri */
}

.container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    gap: 2rem;
    align-items: start;
    box-sizing: border-box;
}

/* Floating Premium Navigation */
nav {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 2rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 1.2rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px -10px rgba(20, 184, 166, 0.15);
    position: sticky;
    top: 1rem;
    z-index: 1000;
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    transition: 0.3s;
    letter-spacing: 0.2px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a:hover::after {
    width: 100%;
}

header {
    grid-column: 1 / -1;
    text-align: center;
    margin-bottom: 2.5rem;
    padding: 2rem 0;
}

h1 {
    font-size: 2.8rem;
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    letter-spacing: -1px;
}

/* Generator Card */
.generator-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    gap: 0;
    background: #ffffff;
    padding: 0.5rem;
    border-radius: 1.2rem;
    border: 2px solid var(--glass-border);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

input, select {
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 1rem;
    font-size: 1.1rem;
    outline: none;
}

input { flex: 2; font-weight: 500; }
select { 
    flex: 1; 
    border-left: 2px solid var(--glass-border); 
    font-weight: 600; 
    color: var(--primary);
    cursor: pointer;
}

.btn-generate {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    border: none;
    padding: 0 2.5rem;
    border-radius: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: 0.5rem;
}

.btn-generate:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 15px -3px rgba(20, 184, 166, 0.3);
}

/* Inbox Styling */
.inbox-container {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.inbox-header {
    padding: 1.5rem 2rem;
    background: var(--primary);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
}

.inbox-header h2 { color: white; }

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
}

.pulse {
    width: 10px;
    height: 10px;
    background: #fff;
    border-radius: 50%;
    animation: pulse-anim 2s infinite;
}

@keyframes pulse-anim {
    0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(255,255,255, 0.4); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(255,255,255, 0); }
    100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(255,255,255, 0); }
}

.message-item {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
}

.message-item:hover {
    background: rgba(20, 184, 166, 0.08);
    border-left: 5px solid var(--primary);
    padding-left: 1.7rem;
}

.msg-sender { font-weight: 700; color: var(--text-main); font-size: 1rem; margin-bottom: 0.2rem; }
.msg-subject { color: var(--text-muted); font-size: 0.95rem; }
.msg-time { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; }

/* Sidebars & Ads */
.sidebar {
    position: sticky;
    top: 2rem;
}

.ad-slot {
    background: #fff;
    border: 2px dashed var(--glass-border);
    padding: 1rem;
    text-align: center;
    color: var(--text-muted);
    border-radius: 1.5rem;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.ad-slot.horizontal {
    min-height: 120px;
    margin-bottom: 2rem;
    grid-column: 1 / -1;
}

/* Modal */
#msg-modal {
    display:none; 
    position:fixed; 
    inset:0; 
    background:rgba(15, 23, 42, 0.4); 
    z-index:100; 
    backdrop-filter:blur(8px); 
    padding: 2rem;
}

#msg-modal > div {
    background: #ffffff; 
    max-width:850px; 
    margin:auto; 
    border-radius:2rem; 
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
    padding: 2.5rem;
}

.pulse {
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse-anim 2s infinite;
}

@keyframes pulse-anim {
    0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(20, 184, 166, 0.4); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(20, 184, 166, 0); }
    100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(20, 184, 166, 0); }
}

@media (max-width: 1150px) {
    .container { grid-template-columns: 1fr; }
    .sidebar { display: none; }
}