/* ============================================
   Captive Portal - Premium Mobile-First Design
   Dark Glassmorphism Theme
   ============================================ */

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

/* ── CSS Variables ── */
:root {
    /* LIGHT MODE (DEFAULT) */
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 1);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);

    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;

    --accent-violet: #7c3aed;
    --accent-violet-glow: rgba(124, 58, 237, 0.2);
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.2);
    --accent-green: #10b981;
    --accent-rose: #f43f5e;

    --google-red: #ea4335;
    --google-blue: #4285f4;
    --facebook-blue: #1877f2;
    --free-green: #10b981;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* DARK MODE */
[data-theme="dark"] {
    --bg-primary: #0a0a1a;
    --bg-secondary: #111128;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-muted: #6a6a80;

    --accent-violet-glow: rgba(124, 58, 237, 0.4);
    --accent-cyan-glow: rgba(6, 182, 212, 0.3);
}

/* ── Reset & Base ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* ── Animated Background ── */
.portal-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.portal-bg::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-violet-glow) 0%, transparent 70%);
    top: -200px;
    left: -100px;
    animation: floatOrb1 15s ease-in-out infinite;
}

.portal-bg::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-cyan-glow) 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation: floatOrb2 18s ease-in-out infinite;
}

@keyframes floatOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(80px, 60px) scale(1.1); }
    66% { transform: translate(-40px, 120px) scale(0.95); }
}

@keyframes floatOrb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-60px, -80px) scale(1.15); }
    66% { transform: translate(100px, -40px) scale(0.9); }
}

/* ── Particle Grid ── */
.particle-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 0);
    background-size: 40px 40px;
}

/* ── Main Container ── */
.portal-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

/* ── Logo / Brand Section ── */
.portal-brand {
    text-align: center;
    margin-bottom: 32px;
    animation: fadeInUp 0.8s ease-out;
}

.portal-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-violet), var(--accent-cyan));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 0 40px var(--accent-violet-glow);
    position: relative;
    overflow: hidden;
}

.portal-logo::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: var(--bg-primary);
    border-radius: calc(var(--radius-lg) - 2px);
    z-index: 0;
}

.portal-logo svg {
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 1;
    fill: none;
    stroke: var(--accent-cyan);
    stroke-width: 2;
}

.portal-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.portal-brand p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 4px;
    font-weight: 400;
}

/* ── Login Card ── */
.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--glass-shadow);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.login-card-title {
    text-align: center;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.login-card-subtitle {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

/* ── Login Buttons ── */
.login-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.login-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,255,255,0.03));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.login-btn:hover::before {
    opacity: 1;
}

.login-btn:active {
    transform: translateY(0);
}

/* Button icon container */
.login-btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--transition-bounce);
}

.login-btn:hover .login-btn-icon {
    transform: scale(1.1);
}

.login-btn-icon svg {
    width: 20px;
    height: 20px;
}

/* Google button */
.login-btn--google {
    border-color: rgba(234, 67, 53, 0.2);
}
.login-btn--google:hover {
    border-color: rgba(234, 67, 53, 0.4);
    background: rgba(234, 67, 53, 0.08);
}
.login-btn--google .login-btn-icon {
    background: rgba(234, 67, 53, 0.15);
}

/* Facebook button */
.login-btn--facebook {
    border-color: rgba(24, 119, 242, 0.2);
}
.login-btn--facebook:hover {
    border-color: rgba(24, 119, 242, 0.4);
    background: rgba(24, 119, 242, 0.08);
}
.login-btn--facebook .login-btn-icon {
    background: rgba(24, 119, 242, 0.15);
}

/* Free button */
.login-btn--free {
    border-color: rgba(16, 185, 129, 0.2);
}
.login-btn--free:hover {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.08);
}
.login-btn--free .login-btn-icon {
    background: rgba(16, 185, 129, 0.15);
}

/* Logout button */
.login-btn--logout {
    border-color: rgba(244, 63, 94, 0.2);
}
.login-btn--logout:hover {
    border-color: rgba(244, 63, 94, 0.4);
    background: rgba(244, 63, 94, 0.08);
}
.login-btn--logout .login-btn-icon {
    background: rgba(244, 63, 94, 0.15);
}

/* Button text container */
.login-btn-text {
    display: flex;
    flex-direction: column;
}

.login-btn-text span:first-child {
    font-weight: 500;
    line-height: 1.3;
}

.login-btn-text span:last-child {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Divider */
.login-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--glass-border);
}

/* ── Footer ── */
.portal-footer {
    text-align: center;
    margin-top: 24px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.portal-footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.portal-footer a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.portal-footer a:hover {
    color: var(--accent-violet);
}

/* ── Success Page ── */
.success-container {
    text-align: center;
    max-width: 500px;
}

.success-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    animation: successPulse 2s ease-in-out infinite;
    box-shadow: 0 0 60px rgba(16, 185, 129, 0.3);
}

.success-icon svg {
    width: 48px;
    height: 48px;
    fill: none;
    stroke: white;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    animation: checkDraw 0.6s ease-out 0.3s both;
}

@keyframes successPulse {
    0%, 100% { box-shadow: 0 0 30px rgba(16, 185, 129, 0.3); }
    50% { box-shadow: 0 0 60px rgba(16, 185, 129, 0.5); }
}

@keyframes checkDraw {
    from { stroke-dasharray: 100; stroke-dashoffset: 100; }
    to { stroke-dasharray: 100; stroke-dashoffset: 0; }
}

.success-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.success-subtitle {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

/* ── Ad Banner Carousel ── */
.ad-carousel {
    width: 100%;
    max-width: 400px;
    margin: 0 auto 24px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: var(--bg-card);
    position: relative;
}

.ad-carousel-inner {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.ad-slide {
    min-width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-slide img {
    width: 100%;
    height: auto;
    max-height: 500px; /* Batasi maksimal tinggi agar tidak menutupi seluruh layar jika gambarnya terlalu panjang (portrait) */
    object-fit: contain;
    display: block;
}

.ad-slide-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.ad-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 10px;
}

.ad-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.ad-dot.active {
    background: var(--accent-cyan);
    width: 20px;
    border-radius: 3px;
}

/* ── Session Timer ── */
.session-timer {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    margin-bottom: 24px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.session-timer-icon {
    color: var(--accent-cyan);
}

.session-timer-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.session-timer-value {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--accent-cyan);
    font-variant-numeric: tabular-nums;
}

/* ── Error Page ── */
.error-card {
    text-align: center;
}

.error-icon {
    width: 80px;
    height: 80px;
    background: rgba(244, 63, 94, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.error-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--accent-rose);
    fill: none;
    stroke-width: 2;
}

.error-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-rose);
    margin-bottom: 8px;
}

.error-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.btn-retry {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--accent-violet), var(--accent-cyan));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-smooth);
}

.btn-retry:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-violet-glow);
}

/* ── Loading Spinner ── */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 26, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-smooth);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ── Animations ── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ── Theme Toggle Button ── */
.portal-theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 50;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-fast);
}

.portal-theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

/* ── Responsive ── */
@media (max-width: 480px) {
    .login-card {
        padding: 24px 16px;
        border-radius: var(--radius-lg);
    }

    .portal-brand h1 {
        font-size: 1.25rem;
    }

    .login-btn {
        padding: 12px 16px;
    }
}

@media (min-width: 768px) {
    .login-card {
        padding: 40px 36px;
    }

    .portal-brand h1 {
        font-size: 1.75rem;
    }
}

/* ── Split Screen Layout (Desktop) ── */
@media (min-width: 992px) {
    .portal-split-layout {
        flex-direction: row;
        gap: 60px;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
    }

    .portal-split-layout .portal-left-pane {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        max-width: 500px;
    }

    .portal-split-layout .portal-right-pane {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        max-width: 450px;
    }

    .portal-split-layout .portal-ad-side {
        margin-top: 24px;
        box-shadow: var(--glass-shadow);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        background: rgba(255, 255, 255, 0.03);
    }
}

/* ── Stacked Layout (Mobile) ── */
@media (max-width: 991px) {
    .portal-split-layout {
        display: flex;
        flex-direction: column;
    }
    
    .portal-split-layout .portal-left-pane {
        order: 2;
        width: 100%;
        max-width: 480px;
        margin: 0 auto;
    }

    .portal-split-layout .portal-right-pane {
        order: 1;
        width: 100%;
        max-width: 480px;
        margin: 0 auto;
    }
    
    .portal-split-layout .portal-ad-side {
        margin-top: 24px;
        margin-bottom: 0;
        box-shadow: var(--glass-shadow);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
    }
}

/* ── Marquee (Running Text) ── */
.portal-marquee {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 10px 0;
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.portal-marquee-text {
    display: inline-block;
    padding-left: 100%;
    animation: marquee-scroll 20s linear infinite;
}

@keyframes marquee-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}