/* Modern Login Page Styles */

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 15px rgba(102, 126, 234, 0.2);
    --shadow-lg: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --color-primary: #667eea;
    --color-secondary: #764ba2;
    --color-light: #f8f9fa;
    --color-border: #e0e0e0;
}

/* Glass Morphism Card */
.modern-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.6s ease-out;
    transition: all 0.3s ease;
    overflow: hidden;
}

.modern-card:hover {
    box-shadow: 0 12px 40px rgba(31, 38, 135, 0.4);
    transform: translateY(-2px);
}

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

/* Card Header */
.modern-card h4 {
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.7rem;
    display: flex;
    align-items: center;
    letter-spacing: 0.3px;
}

.modern-card h4 i {
    margin-right: 10px;
    font-size: 1.6rem;
}

/* Decorative HR */
.modern-card hr {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    margin: 1.5rem 0;
    opacity: 0.6;
}

/* Modern Input Fields */
.modern-input {
    border: none;
    border-bottom: 2px solid var(--color-border);
    border-radius: 8px;
    padding: 14px 0;
    background: transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
    color: #333;
    font-weight: 500;
}

.modern-input::placeholder {
    color: #aaa;
    opacity: 0.8;
    font-weight: 400;
}

.modern-input:focus {
    outline: none;
    border-bottom-color: var(--color-primary);
    background: rgba(102, 126, 234, 0.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
    padding: 14px 8px;
}

.modern-input:valid {
    border-bottom-color: #4caf50;
}

/* Input Group Text */
.input-group-text {
    background: transparent !important;
    border: none !important;
    color: var(--color-primary) !important;
    font-size: 1.1rem;
    border-bottom: 2px solid var(--color-border) !important;
    transition: all 0.3s ease;
}

.modern-input:focus ~ .input-group-text {
    color: var(--color-secondary) !important;
    border-bottom-color: var(--color-primary) !important;
}

/* Modern Buttons */
.modern-btn {
    background: var(--primary-gradient);
    border: none;
    border-radius: 10px;
    padding: 13px 32px;
    font-weight: 600;
    color: white;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.modern-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.modern-btn:hover::before {
    left: 100%;
}

.modern-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.modern-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.modern-btn i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.modern-btn:hover i {
    transform: translateX(2px);
}

/* Secondary Button (Register) */
.modern-btn.success-btn {
    background: var(--secondary-gradient);
}

.modern-btn.success-btn:hover {
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.5);
}

/* Checkbox Styling */
.checkbox-custom {
    accent-color: var(--color-primary);
    cursor: pointer;
    width: 18px;
    height: 18px;
    transition: all 0.3s ease;
}

.checkbox-custom:hover {
    transform: scale(1.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    color: #555;
    font-weight: 500;
}

.checkbox-label:hover {
    color: var(--color-primary);
}

/* Link Styling */
.reset-link {
    color: #ff6b6b;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
    display: inline-block;
}

.reset-link:hover {
    color: #ff5252;
    text-decoration: underline;
    transform: translateX(2px);
}

/* Form Group Spacing */
.input-group.form-group {
    margin-bottom: 1.5rem;
}

/* Bottom Section */
.form-group.text-center {
    margin-top: 1.5rem;
    margin-bottom: 0;
}

.form-group.text-center p {
    color: #999;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .modern-card {
        margin-top: 2rem;
        border-radius: 15px;
        padding: 2rem 1.5rem !important;
    }

    .modern-card h4 {
        font-size: 1.5rem;
    }

    .modern-btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }

    .col-md-4 {
        margin-top: 2rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .modern-card {
        background: rgba(20, 20, 40, 0.9);
        color: #fff;
    }

    .modern-card h4 {
        color: #667eea;
    }

    .modern-input {
        color: #fff;
        border-bottom-color: #444;
    }

    .modern-input::placeholder {
        color: #888;
    }

    .modern-input:focus {
        background: rgba(102, 126, 234, 0.1);
    }

    .checkbox-label {
        color: #ccc;
    }
}

/* Loading Animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.load-indicator {
    display: inline-block;
    margin-right: 8px;
}

.modern-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.modern-btn:disabled:hover {
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}