:root {
    --primary-color: #0c3088;
    --primary-dark: #082555;
    --primary-light: #1a4db8;
    --accent-color: #ffd700;
    --accent-dark: #e6c200;
    --dark-bg: #0a0a0a;
    --darker-bg: #000000;
    --surface: #151515;
    --surface-elevated: #1f1f1f;
    --light-text: #ffffff;
    --muted-text: #a0a0a0;
    --subtle-text: #707070;
    --border-color: #2a2a2a;
    --border-hover: #404040;
    --success-color: #00d4aa;
    --danger-color: #ff4757;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--light-text);
    background: 
        radial-gradient(circle at 20% 20%, rgba(12, 48, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
        linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-x: hidden;
}

.floating-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(1px);
    animation: floatOrb 8s ease-in-out infinite;
}

.orb:nth-child(1) {
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(12, 48, 136, 0.1) 0%, transparent 70%);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb:nth-child(2) {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
    top: 60%;
    right: 15%;
    animation-delay: 3s;
}

.orb:nth-child(3) {
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(12, 48, 136, 0.06) 0%, transparent 70%);
    bottom: 20%;
    left: 20%;
    animation-delay: 6s;
}

@keyframes floatOrb {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
        opacity: 0.6;
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
        opacity: 0.4;
    }
}

.admin-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    overflow: hidden;
    max-width: 450px;
    width: 100%;
    position: relative;
    opacity: 0;
    transform: scale(0.95) translateY(20px);
    animation: fadeInContainer 1s ease-out 0.2s forwards;
}

@keyframes fadeInContainer {
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.top-navigation {
    position: absolute;
    top: 24px;
    left: 24px;
    right: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.back-to-home {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    font-weight: 500;
}

.back-to-home:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
    transform: translateX(-4px);
    text-decoration: none;
    border-color: rgba(255, 255, 255, 0.2);
}

.back-to-home i {
    margin-right: 8px;
    font-size: 0.8rem;
}

.admin-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 80px 40px 40px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.admin-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

.admin-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
    position: relative;
    z-index: 2;
}

.admin-icon i {
    font-size: 2rem;
    color: var(--primary-dark);
}

.admin-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 600;
    margin: 0;
    color: var(--light-text);
    letter-spacing: -0.02em;
    position: relative;
    z-index: 2;
}

.admin-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-top: 8px;
    position: relative;
    z-index: 2;
}

.admin-content {
    padding: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    color: var(--light-text);
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
    font-size: 0.9rem;
}

.form-control {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    color: var(--light-text);
    font-size: 1rem;
    transition: all 0.3s ease;
    width: 100%;
}

.form-control:focus {
    background: var(--surface-elevated);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(12, 48, 136, 0.1);
    outline: none;
    color: var(--light-text);
}

.form-control::placeholder {
    color: var(--subtle-text);
}

.login-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    border-radius: 12px;
    padding: 16px 24px;
    color: var(--light-text);
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(12, 48, 136, 0.3);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(12, 48, 136, 0.4);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
}

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

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.alert {
    border-radius: 12px;
    border: none;
    padding: 16px 20px;
    margin-top: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(-10px);
    animation: slideInAlert 0.3s ease-out forwards;
}

@keyframes slideInAlert {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-danger {
    background: rgba(255, 71, 87, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(255, 71, 87, 0.2);
}

.alert-success {
    background: rgba(0, 212, 170, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(0, 212, 170, 0.2);
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--light-text);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .admin-container {
        margin: 10px;
        border-radius: 20px;
        max-width: none;
    }

    .top-navigation {
        position: static;
        margin: 16px 24px 0;
        justify-content: flex-start;
    }

    .admin-header {
        padding: 60px 24px 32px;
    }

    .admin-icon {
        width: 64px;
        height: 64px;
        border-radius: 16px;
    }

    .admin-icon i {
        font-size: 1.6rem;
    }

    .admin-title {
        font-size: 1.6rem;
    }

    .admin-content {
        padding: 32px 24px 40px;
    }
}

@media (max-width: 480px) {
    .admin-header {
        padding: 50px 20px 28px;
    }

    .admin-title {
        font-size: 1.4rem;
    }

    .admin-content {
        padding: 28px 20px 32px;
    }

    .form-control {
        padding: 14px 16px;
    }

    .login-btn {
        padding: 14px 20px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states */
.back-to-home:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.form-control:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.login-btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}