/* ============================================
   FasFerry Checker - Modern Login Design
   ============================================ */

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

/* Container */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: var(--neutral-950);
    position: relative;
    overflow: hidden;
}

/* Animated Background */
.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 215, 0, 0.03) 0%, transparent 50%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Main Container */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    animation: fadeIn 0.6s var(--ease-out);
}

/* Logo */
.logo-container {
    text-align: center;
    margin-bottom: var(--space-8);
    animation: slideIn 0.8s var(--ease-out);
}

.logo-container img {
    width: 100px;
    height: 100px;
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.3));
    transition: transform var(--transition-slow) var(--ease-bounce);
}

.logo-container img:hover {
    transform: scale(1.05) rotate(-5deg);
}

.logo-title {
    margin-top: var(--space-4);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

/* Alert Messages */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: slideIn var(--transition-slow) var(--ease-out);
    backdrop-filter: blur(var(--blur-sm));
}

.alert i {
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.alert-success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(22, 163, 74, 0.15) 100%);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--success-light);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.15) 100%);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error-light);
}

/* Card */
.card {
    background: rgba(23, 23, 23, 0.8);
    backdrop-filter: blur(var(--blur-lg));
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 215, 0, 0.1);
    padding: var(--space-8);
    box-shadow: var(--shadow-2xl), var(--shadow-gold-sm);
    transition: all var(--transition-slow) var(--ease-out);
    animation: scaleIn 0.5s var(--ease-out);
}

.card:hover {
    border-color: rgba(255, 215, 0, 0.2);
    box-shadow: var(--shadow-2xl), var(--shadow-gold-md);
    transform: translateY(-2px);
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    padding: var(--space-1);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
}

.tab-item {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    text-align: center;
    color: var(--neutral-400);
    cursor: pointer;
    border-radius: var(--radius-md);
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    transition: all var(--transition-base) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.tab-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-gold);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.tab-item:hover {
    color: var(--neutral-100);
    background: rgba(255, 255, 255, 0.05);
}

.tab-item.active {
    color: var(--neutral-950);
    font-weight: var(--font-semibold);
}

.tab-item.active::before {
    opacity: 1;
}

.tab-item i {
    margin-right: var(--space-2);
}

/* Form */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn var(--transition-slow) var(--ease-out);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--primary-300);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    letter-spacing: 0.01em;
}

.form-input-wrapper {
    position: relative;
}

.form-input-wrapper i {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-500);
    font-size: var(--text-lg);
    transition: all var(--transition-base);
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
    background: rgba(255, 255, 255, 0.05);
    border: 1.5px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--radius-lg);
    color: var(--neutral-100);
    font-size: var(--text-base);
    font-family: var(--font-sans);
    transition: all var(--transition-base) var(--ease-out);
}

.form-input::placeholder {
    color: var(--neutral-500);
}

.form-input:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 215, 0, 0.3);
}

.form-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.form-input:focus + .form-input-wrapper i {
    color: var(--primary-400);
    transform: translateY(-50%) scale(1.1);
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: var(--space-4);
    background: var(--gradient-gold);
    color: var(--neutral-950);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    cursor: pointer;
    transition: all var(--transition-base) var(--ease-out);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.2);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s var(--ease-out), height 0.6s var(--ease-out);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
}

.submit-btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.submit-btn i {
    margin-right: var(--space-2);
}

/* Loading State */
.submit-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid var(--neutral-950);
    border-top-color: transparent;
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
}

/* Footer */
.footer-text {
    text-align: center;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--neutral-400);
    animation: fadeIn 1s var(--ease-out) 0.3s both;
}

.footer-text span {
    background: linear-gradient(90deg,
        var(--primary-400) 0%,
        var(--primary-500) 25%,
        #FF4500 50%,
        #3b82f6 75%,
        #22c55e 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
    color: var(--neutral-500);
    font-size: var(--text-sm);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 215, 0, 0.2), transparent);
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        max-width: 100%;
    }

    .card {
        padding: var(--space-6);
    }

    .logo-container img {
        width: 80px;
        height: 80px;
    }

    .logo-title {
        font-size: var(--text-xl);
    }

    .tab-item {
        padding: var(--space-3);
        font-size: var(--text-xs);
    }

    .tab-item i {
        display: none;
    }
}

/* Dark Mode Enhancement */
@media (prefers-color-scheme: dark) {
    .card {
        background: rgba(10, 10, 10, 0.9);
    }
}