/* ============================================
   CSS Variables for Light/Dark Mode
   ============================================ */
:root {
    /* Light Mode (Default) */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-gradient: linear-gradient(135deg, #e9ecef 0%, #f8f9fa 100%);
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(0, 0, 0, 0.1);
    --ip-gradient: linear-gradient(90deg, #0066cc, #009933);
    --info-label-color: #6c757d;
    --info-value-color: #212529;
    --border-color: #dee2e6;
    
    /* Error page specific */
    --error-card-bg: linear-gradient(145deg, rgba(255,255,255,0.95), rgba(248,249,250,0.98));
    --error-card-border: rgba(220, 53, 69, 0.5);
    --error-text: #212529;
    --error-message-text: #495057;
    --timer-container-bg: linear-gradient(135deg, rgba(0,102,204,0.1), rgba(0,153,51,0.1));
    --timer-container-border: rgba(0, 102, 204, 0.3);
}

[data-theme="dark"] {
    /* Dark Mode */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --text-primary: #ffffff;
    --text-secondary: #e9ecef;
    --text-muted: #adb5bd;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --ip-gradient: linear-gradient(90deg, #00d4ff, #00ff88);
    --info-label-color: #adb5bd;
    --info-value-color: #e9ecef;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Error page specific */
    --error-card-bg: linear-gradient(145deg, rgba(30,30,50,0.95), rgba(20,20,40,0.98));
    --error-card-border: rgba(220, 53, 69, 0.5);
    --error-text: #ffffff;
    --error-message-text: #e0e0e0;
    --timer-container-bg: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(0,255,136,0.15));
    --timer-container-border: rgba(0, 212, 255, 0.3);
}

/* ============================================
   Base Styles
   ============================================ */
body {
    background: var(--bg-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    transition: background 0.3s ease, color 0.3s ease;
}

/* ============================================
   Theme Toggle Button
   ============================================ */
.theme-toggle {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    left: auto !important;
    z-index: 1000;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.theme-toggle i {
    font-size: 1.3rem;
}

/* ============================================
   IP Display Page
   ============================================ */
.ip-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.page-title {
    color: var(--text-primary) !important;
}

.page-subtitle {
    color: var(--text-muted) !important;
}

.ip-display {
    font-size: 2.5rem;
    font-family: 'Courier New', monospace;
    background: var(--ip-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-label {
    color: var(--info-label-color);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-value {
    color: var(--info-value-color);
    font-family: 'Courier New', monospace;
}

.divider {
    border-color: var(--border-color);
}

/* ============================================
   Error Page (Rate Limit)
   ============================================ */
.error-body {
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-card {
    background: var(--error-card-bg);
    backdrop-filter: blur(15px);
    border: 2px solid var(--error-card-border);
    box-shadow: 0 0 40px rgba(220,53,69,0.2), 0 10px 40px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

.error-card .card-body {
    color: var(--error-text) !important;
}

.error-icon {
    font-size: 5rem;
    color: #ff6b6b !important;
    text-shadow: 0 0 30px rgba(255,107,107,0.5);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.error-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--error-text) !important;
}

.error-message {
    color: var(--error-message-text) !important;
    font-size: 1.1rem;
}

.timer-container {
    background: var(--timer-container-bg);
    border-radius: 20px;
    padding: 30px 50px;
    margin: 25px 0;
    border: 1px solid var(--timer-container-border);
}

.timer {
    font-size: 4rem;
    font-weight: bold;
    color: #0066cc !important;
    font-family: 'Courier New', monospace;
}

[data-theme="dark"] .timer {
    color: #00d4ff !important;
    text-shadow: 0 0 20px rgba(0,212,255,0.5);
}

.timer-label {
    color: var(--text-primary) !important;
    font-size: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 10px;
}

.retry-btn {
    background: linear-gradient(135deg, #00d4ff, #00ff88) !important;
    border: none !important;
    color: #1a1a2e !important;
    font-weight: 600;
    padding: 12px 40px;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,212,255,0.4);
    color: #1a1a2e !important;
}

/* Format buttons */
.btn-outline-info {
    border-color: var(--card-border);
    color: var(--text-primary);
}

.btn-outline-info:hover {
    background: var(--card-bg);
    border-color: var(--text-primary);
    color: var(--text-primary);
}