/* ============================================
   FalakTech Dashboard Gerhana Bulan
   Tema: Dark Mode (ikut FalakTech.my)
   ============================================ */

/* Gunakan CSS variables dari tema utama */
:root {
    --primary-dark: #0a0a0f;
    --secondary-dark: #1a1a2e;
    --accent-dark: #16213e;
    --accent-green: #00ff88;
    --accent-green-dark: #00cc6a;
    --accent-green-light: #00ffaa;
    --text-primary: #fff;
    --text-secondary: #b0b0b0;
    --text-muted: #6c6c6c;
    --border-color: #2a2a4a;
    --error: #EF4444;
    --warning: #f59e0b;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-glow: 0 0 40px rgba(0, 255, 136, 0.3);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #0a0a0f 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--gradient-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Dwibahasa */
[data-lang="ms"] .en { display: none; }
[data-lang="en"] .ms { display: none; }

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    text-align: center;
    padding: 40px 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
    background: rgba(0, 0, 0, 0.3);
}

.header-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
    text-decoration: none;
}

.header-logo img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.header h1 {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    background: linear-gradient(135deg, #fff 0%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 10px;
}

.header .moon-icon {
    font-size: 2rem;
}

/* Back to main site link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-green);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: var(--accent-green-light);
    transform: translateX(-5px);
}

/* ============================================
   LANGUAGE TOGGLE
   ============================================ */
.lang-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 5px;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    padding: 5px;
    border-radius: 30px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.lang-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    background: transparent;
    color: var(--text-primary);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-green-dark) 100%);
    color: var(--primary-dark);
}

/* ============================================
   SCREENS (SPA-like navigation)
   ============================================ */
.screen {
    display: none;
    animation: fadeIn 0.3s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(15px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* ============================================
   FORM CARD (Screen 1)
   ============================================ */
.form-card {
    background: rgba(22, 33, 62, 0.6);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid var(--border-color);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.form-group label .icon {
    margin-right: 8px;
}

select {
    width: 100%;
    padding: 16px 20px;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--secondary-dark);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2300ff88' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 20px;
}

select:hover,
select:focus {
    border-color: var(--accent-green);
    outline: none;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.15);
}

select option {
    background: var(--secondary-dark);
    color: var(--text-primary);
    padding: 10px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-body);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-green-dark) 100%);
    color: var(--primary-dark);
    width: 100%;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    padding: 12px 30px;
    font-size: 1rem;
}

.btn-secondary:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.btn-small {
    padding: 10px 25px;
    font-size: 0.95rem;
}

/* ============================================
   LIST HEADER (Screen 2)
   ============================================ */
.list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
    padding: 20px;
    background: rgba(22, 33, 62, 0.4);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.list-header h2 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-primary);
}

.list-header .flag {
    font-size: 1.8rem;
}

/* ============================================
   ECLIPSE CARDS
   ============================================ */
.eclipse-card {
    background: rgba(22, 33, 62, 0.6);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.eclipse-card:hover {
    border-color: var(--accent-green);
    transform: translateX(5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.eclipse-card.not-visible {
    opacity: 0.5;
}

.eclipse-card.not-visible:hover {
    border-color: var(--border-color);
    transform: none;
}

.eclipse-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.eclipse-icon {
    font-size: 2.8rem;
}

.eclipse-date {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-green);
}

.eclipse-type {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.eclipse-status {
    display: inline-block;
    padding: 12px 18px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
}

.eclipse-status.visible {
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.eclipse-status.not-visible {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid var(--error);
}

.eclipse-status.penumbra {
    background: rgba(176, 176, 176, 0.1);
    color: var(--text-secondary);
    border: 1px solid var(--text-muted);
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 20px;
}

/* ============================================
   CHART SCREEN (Screen 3)
   ============================================ */
.chart-header {
    text-align: center;
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(22, 33, 62, 0.4);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.chart-header h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--accent-green);
    margin-bottom: 8px;
}

.chart-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.chart-container {
    background: rgba(22, 33, 62, 0.6);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    overflow: hidden;
}

.chart-container iframe {
    width: 100%;
    height: 550px;
    border: none;
    border-radius: 12px;
    background: #0a0a1a;
}

/* ============================================
   INFO BOX
   ============================================ */
.info-box {
    background: rgba(22, 33, 62, 0.6);
    border-radius: 16px;
    padding: 25px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
}

.info-box h3 {
    color: var(--accent-green);
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-family: var(--font-heading);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-row:last-child {
    border-bottom: none;
}

.info-row .label {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-row .value {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.05rem;
}

/* ============================================
   FOOTER NAVIGATION
   ============================================ */
.nav-footer {
    text-align: center;
    padding: 30px 0;
}

/* ============================================
   LOADING STATE
   ============================================ */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 15px;
}

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

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state .icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header {
        padding: 30px 15px;
    }

    .header h1 {
        font-size: 1.4rem;
    }

    .form-card {
        padding: 25px 20px;
    }

    .eclipse-card {
        padding: 20px;
    }

    .eclipse-header {
        flex-wrap: wrap;
    }

    .eclipse-date {
        font-size: 1.2rem;
    }

    .chart-container iframe {
        height: 400px;
    }

    .info-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .lang-toggle {
        top: 10px;
        right: 10px;
    }

    .lang-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.2rem;
    }

    .btn {
        padding: 14px 25px;
        font-size: 1rem;
    }

    .chart-container iframe {
        height: 350px;
    }

    .list-header h2 {
        font-size: 1rem;
    }
}