/* GeekDZ Club - Neon Blue Tech Theme */
@import url('https://unpkg.com/boxicons@2.1.4/css/boxicons.min.css');

:root {
    --neon-blue: #00FFFF;
    --neon-blue-dark: #00CCCC;
    --neon-blue-light: #33FFFF;
    --neon-blue-glow: rgba(0, 255, 255, 0.5);
    --dark-bg: #0a0a0f;
    --dark-surface: #12121a;
    --dark-card: #1a1a24;
    --dark-card-hover: #22222e;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #707070;
    --success-color: #00FF88;
    --error-color: #FF0066;
    --warning-color: #FFAA00;
    --border-color: #2a2a3a;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
    --neon-shadow: 0 0 20px var(--neon-blue-glow), 0 0 40px var(--neon-blue-glow);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 60px 20px;
    animation: fadeInUp 0.8s ease-out;
}

.logo-container {
    margin-bottom: 30px;
}

.logo {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 0 20px var(--neon-blue-glow));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes neonPulse {
    0%, 100% { 
        box-shadow: 0 0 10px var(--neon-blue-glow), 0 0 20px var(--neon-blue-glow);
    }
    50% { 
        box-shadow: 0 0 20px var(--neon-blue-glow), 0 0 40px var(--neon-blue-glow), 0 0 60px var(--neon-blue-glow);
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--neon-blue);
    text-shadow: 0 0 20px var(--neon-blue-glow);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border: 2px solid var(--neon-blue);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    background: transparent;
    color: var(--neon-blue);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--neon-blue);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn:hover {
    color: var(--dark-bg);
    transform: translateY(-2px);
    box-shadow: var(--neon-shadow);
}

.btn:hover::before {
    left: 0;
}

.btn-primary {
    background: var(--neon-blue);
    color: var(--dark-bg);
    border-color: var(--neon-blue);
}

.btn-primary::before {
    background: var(--neon-blue-light);
}

.btn-primary:hover {
    color: var(--dark-bg);
    background: var(--neon-blue-light);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--dark-card);
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

.btn-secondary::before {
    display: none;
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    display: flex;
    justify-content: center;
}

.btn i {
    font-size: 1.2em;
}

/* Form Styles */
.form-container {
    max-width: 700px;
    margin: 40px auto;
    background: var(--dark-card);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.8s ease-out;
    position: relative;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
    border-radius: 16px 16px 0 0;
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-logo {
    max-width: 120px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px var(--neon-blue-glow));
}

.form-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--neon-blue);
    text-shadow: 0 0 10px var(--neon-blue-glow);
}

.form-header p {
    color: var(--text-secondary);
}

.registration-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    position: relative;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group label i {
    color: var(--neon-blue);
    font-size: 1.1em;
}

.required {
    color: var(--error-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 14px 16px;
    background: var(--dark-surface);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    position: relative;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px var(--neon-blue-glow);
    background: var(--dark-card);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--error-color);
    box-shadow: 0 0 15px rgba(255, 0, 102, 0.3);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--dark-surface);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.checkbox-label:hover {
    border-color: var(--neon-blue);
    background: rgba(0, 255, 255, 0.05);
    box-shadow: 0 0 10px var(--neon-blue-glow);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--neon-blue);
}

.checkbox-label i {
    color: var(--neon-blue);
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 5px;
    display: none;
    display: flex;
    align-items: center;
    gap: 5px;
}

.error-message.show {
    display: flex;
}

.error-message i {
    font-size: 1em;
}

.form-message {
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    display: none;
    font-weight: 600;
    animation: fadeInUp 0.5s ease-out;
}

.form-message.show {
    display: block;
}

.form-message.success {
    background: rgba(0, 255, 136, 0.1);
    border: 2px solid var(--success-color);
    color: var(--success-color);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.form-message.error {
    background: rgba(255, 0, 102, 0.1);
    border: 2px solid var(--error-color);
    color: var(--error-color);
    box-shadow: 0 0 20px rgba(255, 0, 102, 0.3);
}

.form-message i {
    margin-right: 10px;
    font-size: 1.2em;
}

/* Success Message (Inline) */
.success-message-container {
    text-align: center;
    padding: 40px 20px;
    background: var(--dark-card);
    border-radius: 16px;
    border: 2px solid var(--success-color);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
    margin-top: 30px;
    animation: fadeInUp 0.8s ease-out;
}

.success-icon-large {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
    animation: neonPulse 2s ease-in-out infinite;
}

.success-message-container h2 {
    color: var(--success-color);
    font-size: 2rem;
    margin-bottom: 15px;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.success-message-container p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 10px;
}

/* Admin Login */
.admin-login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.admin-login-box {
    background: var(--dark-card);
    border-radius: 16px;
    padding: 40px;
    max-width: 450px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.8s ease-out;
    position: relative;
}

.admin-login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
    border-radius: 16px 16px 0 0;
}

.admin-login-header {
    text-align: center;
    margin-bottom: 30px;
}

.admin-logo {
    max-width: 100px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px var(--neon-blue-glow));
}

.admin-login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.admin-login-footer {
    text-align: center;
    margin-top: 20px;
}

.admin-login-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.admin-login-footer a:hover {
    color: var(--neon-blue);
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: rgba(255, 0, 102, 0.1);
    border: 2px solid var(--error-color);
    color: var(--error-color);
}

.alert i {
    font-size: 1.2em;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .form-container {
        padding: 30px 20px;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 10px;
    }
}