/* Login Page Styles */
:root {
    /* Core Brand Colors */
    --brand-orange: #bd202d;
    --brand-deep-orange: #a01c26;
    --brand-light-orange: #d73541;
    --brand-bright-orange: #e04a56;
    --brand-coral: #e85f6b;

    /* Supporting Colors */
    --warm-gray: #5a5a5a;
    --cool-gray: #3e3e3d;
    --light-gray: #f8f9fa;
    --medium-gray: #6b7280;
    --border-gray: #e5e7eb;

    /* Accent Colors */
    --accent-gold: #fbbf24;
    --accent-orange: #f97316;
    --success-green: #10b981;

    --primary-color: var(--brand-orange);
    --secondary-color: var(--brand-light-orange);
    --accent-color: var(--accent-gold);
    --dark-color: var(--cool-gray);
    --light-color: var(--light-gray);
    --border-color: var(--border-gray);

    /* Enhanced Red-Based Gradients */
    --gradient-primary: linear-gradient(135deg, var(--brand-orange) 0%, var(--brand-light-orange) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--brand-light-orange) 0%, var(--brand-bright-orange) 100%);
    --gradient-warm: linear-gradient(135deg, var(--brand-orange) 0%, var(--accent-orange) 100%);
    --gradient-earth: linear-gradient(135deg, var(--brand-deep-orange) 0%, var(--brand-orange) 100%);
    --gradient-sunset: linear-gradient(135deg, var(--brand-orange) 0%, var(--brand-light-orange) 50%, var(--accent-gold) 100%);
    --gradient-golden: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-gold) 100%);
    --gradient-hero: linear-gradient(135deg, var(--brand-orange) 0%, var(--brand-light-orange) 50%, var(--brand-bright-orange) 100%);

    --shadow: 0 4px 6px -1px rgba(189, 32, 45, 0.15);
    --shadow-warm: 0 8px 25px rgba(189, 32, 45, 0.25);
    --shadow-golden: 0 10px 30px rgba(201, 42, 55, 0.2);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

.login-section {
    min-height: 100vh;
    background: var(--gradient-primary);
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.login-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.login-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 4rem;
    color: white;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.login-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.login-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.portal-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.portal-card {
    background: white;
    padding: 0;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.4s ease;
    cursor: pointer;
    border: 3px solid transparent;
    position: relative;
    overflow: hidden;
    min-height: 450px;
}

.portal-banner {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem;
    margin: 0;
    border-radius: 17px 17px 0 0;
}

.admin-banner {
    background: var(--gradient-earth);
}

.portal-type {
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.portal-card-content {
    padding: 2rem;
}

.portal-card h3,
.portal-card p,
.portal-card .portal-features,
.portal-card .portal-cta {
    padding: 0 2rem;
}

.portal-card h3 {
    margin: 1.5rem 0 1rem;
}

.portal-card p {
    margin-bottom: 1.5rem;
}

.portal-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    border-color: rgba(189, 32, 45, 0.3);
}

.student-portal:hover {
    border-color: rgba(189, 32, 45, 0.5);
}

.admin-portal:hover {
    border-color: rgba(189, 32, 45, 0.5);
}

.portal-cta {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem 2rem;
    margin: 2rem 0 0;
    border-radius: 0 0 17px 17px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.admin-cta {
    background: var(--gradient-secondary);
}

.portal-card:hover .portal-cta {
    padding: 1.2rem 2rem;
}

.portal-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2rem;
    color: white;
    transition: var(--transition);
}

.student-portal .portal-icon {
    background: var(--gradient-primary);
}

.admin-portal .portal-icon {
    background: var(--gradient-secondary);
}

.portal-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.portal-card p {
    color: #6b7280;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.portal-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.portal-features span {
    color: #6b7280;
    font-size: 0.9rem;
    text-align: left;
}

.login-form-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    overflow-y: auto;
}

.login-form-container.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.login-form {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    margin: 1rem;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    transform: translateY(30px);
    transition: var(--transition);
}

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

.form-header {
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.form-header i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.form-header h2 {
    color: var(--dark-color);
    margin-bottom: 0.3rem;
    font-size: 1.5rem;
}

.back-btn {
    position: absolute;
    top: 0;
    left: 0;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #6b7280;
    cursor: pointer;
    transition: var(--transition);
}

.back-btn:hover {
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 1.2rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.8rem 0.8rem 0.8rem 2.5rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 2.3rem;
    color: #6b7280;
    font-size: 1rem;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 2.3rem;
    background: none;
    border: none;
    color: #6b7280;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

.password-toggle:hover {
    color: var(--primary-color);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: #6b7280;
}

.checkbox-container input {
    width: auto;
    margin: 0;
    padding: 0;
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.forgot-password:hover {
    text-decoration: underline;
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(189, 32, 45, 0.3);
}

.admin-btn {
    background: var(--gradient-earth);
}

.admin-btn:hover {
    box-shadow: 0 10px 25px rgba(141, 136, 110, 0.3);
}

.form-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
}

.form-footer p {
    margin-bottom: 0.5rem;
    color: #6b7280;
    font-size: 0.9rem;
}

.form-footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.form-footer a:hover {
    text-decoration: underline;
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.message.info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #3b82f6;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .login-section {
        padding: 80px 0 30px;
    }
    
    .login-header h1 {
        font-size: 2rem;
    }

    .portal-selection {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }

    .portal-card {
        min-height: 350px;
    }

    .login-form {
        margin: 1rem;
        padding: 1.5rem;
        max-width: calc(100vw - 2rem);
        max-height: calc(100vh - 2rem);
        overflow-y: auto;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }
    
    .login-container {
        padding: 0 1rem;
    }
}

/* Animation for portal cards */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.portal-card {
    animation: float 6s ease-in-out infinite;
}

.portal-card:nth-child(2) {
    animation-delay: 3s;
}