/* IDtop Sign In Page - Modern Youth-Focused Design */
/* ================================================ */

/* Import AOS for animations */
@import url('https://cdnjs.cloudflare.com/ajax/libs/aos/2.3.4/aos.css');

/* Sign In Page Container */
/* ===================== */
.signin-page {
    min-height: 100vh;
    position: relative;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 50%, var(--primary-lighter) 100%);
    overflow: hidden;
}

/* Animated Background */
/* ================== */
.signin-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: var(--radius-full);
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 120px;
    height: 120px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 80px;
    height: 80px;
    top: 20%;
    right: 15%;
    animation-delay: 1s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    bottom: 15%;
    left: 5%;
    animation-delay: 2s;
}

.shape-4 {
    width: 60px;
    height: 60px;
    bottom: 30%;
    right: 10%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-20px) rotate(120deg);
    }
    66% {
        transform: translateY(10px) rotate(240deg);
    }
}

/* Back Home Link */
/* ============== */
.back-home {
    position: relative;
    z-index: 10;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.back-link:hover {
    color: var(--primary-color);
    background: var(--white);
    transform: translateX(-5px);
    box-shadow: var(--shadow-md);
}

/* Main Sign In Card */
/* ================= */
.signin-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.signin-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* Header Section */
/* ============== */
.signin-header {
    padding: var(--space-8) var(--space-8) var(--space-6);
    text-align: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.02) 0%, rgba(139, 92, 246, 0.02) 100%);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.brand-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-direction: column;
}

.brand-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-4xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.brand-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.signin-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin: 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.signin-subtitle {
    color: var(--gray-600);
    font-size: var(--text-lg);
    margin: var(--space-2) 0 0;
    font-weight: 500;
}

/* Form Container */
/* ============== */
.signin-form-container {
    padding: var(--space-6) var(--space-8) var(--space-8);
}

/* Modern Form Inputs */
/* ================== */
.form-floating {
    position: relative;
    margin-bottom: var(--space-4);
}

.modern-input {
    border: 2px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    font-size: var(--text-base);
    font-weight: 500;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    height: 65px;
}

.modern-input:focus {
    border-color: var(--primary-color);
    background: var(--white);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.15);
    outline: none;
}

.form-floating > label {
    padding: var(--space-4) var(--space-5);
    font-weight: 600;
    color: var(--gray-600);
    font-size: var(--text-sm);
    transition: all var(--transition-normal);
}

.form-floating > .modern-input:focus ~ label,
.form-floating > .modern-input:not(:placeholder-shown) ~ label {
    opacity: 0.8;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* Password Toggle */
/* =============== */
.password-toggle {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: var(--text-lg);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    z-index: 10;
}

.password-toggle:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

/* Input Feedback */
/* ============== */
.input-feedback {
    position: absolute;
    bottom: -22px;
    left: var(--space-4);
    font-size: var(--text-xs);
    color: var(--danger-color);
    opacity: 0;
    transform: translateY(-5px);
    transition: all var(--transition-normal);
}

.input-feedback.show {
    opacity: 1;
    transform: translateY(0);
}

.input-feedback.success {
    color: var(--success-color);
}

/* Form Options */
/* ============= */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-sm);
    background-color: transparent;
    transition: all var(--transition-normal);
}

.form-check-input:checked {
    background: var(--primary-gradient);
    border-color: var(--primary-color);
}

.form-check-label {
    color: var(--gray-700);
    font-weight: 500;
    font-size: var(--text-sm);
    cursor: pointer;
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.forgot-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition-normal);
}

.forgot-link:hover::after {
    width: 100%;
}

.forgot-link:hover {
    color: var(--primary-dark);
}

/* reCAPTCHA Container */
/* ================== */
.captcha-container {
    display: flex;
    justify-content: center;
    margin: var(--space-4) 0;
}

.captcha-container .g-recaptcha {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* Sign In Button */
/* ============== */
.signin-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-xl);
    color: var(--white);
    font-weight: 700;
    font-size: var(--text-lg);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    margin-bottom: var(--space-6);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.signin-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 var(--transition-slow);
}

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

.signin-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-content {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-normal);
}

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.signin-btn.loading .btn-content {
    opacity: 0;
}

.signin-btn.loading .btn-loader {
    opacity: 1;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s linear infinite;
}

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

/* Quick Actions */
/* ============= */
.quick-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-6);
}

.quick-action-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.quick-action-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Divider */
/* ======= */
.divider {
    position: relative;
    text-align: center;
    margin: var(--space-6) 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
}

.divider span {
    background: var(--white);
    padding: 0 var(--space-4);
    color: var(--gray-600);
    font-weight: 600;
    font-size: var(--text-sm);
    position: relative;
    z-index: 1;
}

/* Register Section */
/* ================ */
.register-section {
    text-align: center;
    margin-bottom: var(--space-6);
}

.register-text {
    color: var(--gray-600);
    font-weight: 500;
    margin-bottom: var(--space-4);
}

.register-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: rgba(139, 92, 246, 0.1);
    color: var(--cyber-purple);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 700;
    transition: all var(--transition-normal);
    border: 2px solid rgba(139, 92, 246, 0.2);
}

.register-btn:hover {
    background: var(--cyber-purple);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Benefits Section */
/* ================ */
.benefits-section {
    padding: var(--space-6) var(--space-8);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.02) 0%, rgba(139, 92, 246, 0.02) 100%);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
}

.benefits-title {
    text-align: center;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-6);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.benefit-item:hover {
    background: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.benefit-content h4 {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--space-1) 0;
}

.benefit-content p {
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin: 0;
    font-weight: 500;
}

/* Security Notice */
/* =============== */
.security-notice {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-6) var(--space-8);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.05) 0%, rgba(34, 197, 94, 0.02) 100%);
    border-top: 1px solid rgba(34, 197, 94, 0.1);
    border-radius: 0 0 var(--radius-3xl) var(--radius-3xl);
}

.security-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--success-color) 0%, var(--neon-green) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.security-content h4 {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--space-2) 0;
}

.security-content p {
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin: 0;
    line-height: 1.6;
}

/* Trust Indicators */
/* ================ */
.trust-indicators {
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    margin-top: var(--space-8);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--gray-700);
    font-weight: 600;
    font-size: var(--text-sm);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.trust-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.trust-item i {
    color: var(--accent-color);
    font-size: var(--text-base);
}

/* Loading Overlay */
/* =============== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-4);
}

.loading-content p {
    font-size: var(--text-lg);
    font-weight: 600;
    margin: 0;
}

/* Form Validation States */
/* ====================== */
.modern-input.is-valid {
    border-color: var(--success-color);
    background: rgba(34, 197, 94, 0.05);
}

.modern-input.is-invalid {
    border-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.05);
}

.form-floating .modern-input.is-valid ~ .input-feedback {
    color: var(--success-color);
}

.form-floating .modern-input.is-invalid ~ .input-feedback {
    color: var(--danger-color);
}

/* Responsive Design */
/* ================= */
@media (max-width: 991.98px) {
    .signin-card {
        margin: var(--space-4);
        border-radius: var(--radius-2xl);
    }
    
    .signin-header,
    .signin-form-container,
    .benefits-section,
    .security-notice {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .trust-indicators {
        gap: var(--space-3);
        margin-top: var(--space-6);
    }
}

@media (max-width: 767.98px) {
    .signin-page {
        padding: var(--space-4) 0;
    }
    
    .signin-card {
        margin: 0;
    }
    
    .signin-header,
    .signin-form-container,
    .benefits-section,
    .security-notice {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    
    .signin-title {
        font-size: var(--text-3xl);
    }
    
    .brand-section {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .brand-icon {
        width: 60px;
        height: 60px;
        font-size: var(--text-3xl);
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }
    
    .quick-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .quick-action-btn {
        justify-content: center;
    }
    
    .trust-indicators {
        flex-direction: column;
        align-items: center;
    }
    
    .security-notice {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 575.98px) {
    .floating-shapes .shape {
        display: none;
    }
    
    .signin-header {
        padding: var(--space-6) var(--space-4) var(--space-4);
    }
    
    .signin-form-container {
        padding: var(--space-4);
    }
    
    .benefits-section,
    .security-notice {
        padding: var(--space-4);
    }
    
    .modern-input {
        height: 60px;
        padding: var(--space-3) var(--space-4);
    }
    
    .form-floating > label {
        padding: var(--space-3) var(--space-4);
    }
    
    .password-toggle {
        right: var(--space-3);
    }
    
    .signin-btn {
        height: 55px;
        font-size: var(--text-base);
    }
}

/* Dark Mode Support */
/* ================= */
@media (prefers-color-scheme: dark) {
    .signin-page {
        background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 50%, var(--gray-900) 100%);
    }
    
    .signin-card {
        background: rgba(26, 26, 46, 0.95);
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .modern-input {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.2);
        color: var(--gray-200);
    }
    
    .modern-input:focus {
        background: rgba(255, 255, 255, 0.1);
        border-color: var(--primary-color);
    }
    
    .form-floating > label {
        color: var(--gray-400);
    }
    
    .signin-title {
        color: var(--white);
    }
    
    .signin-subtitle {
        color: var(--gray-400);
    }
    
    .benefit-item {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .benefit-content h4 {
        color: var(--gray-200);
    }
    
    .benefit-content p {
        color: var(--gray-400);
    }
}

/* High Contrast Mode */
/* ================== */
@media (prefers-contrast: high) {
    .modern-input {
        border-width: 3px;
    }
    
    .signin-btn {
        border: 3px solid var(--white);
    }
    
    .benefit-item {
        border-width: 2px;
    }
}

/* Reduced Motion */
/* ============== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-shapes .shape {
        animation: none;
    }
    
    .brand-icon::before {
        animation: none;
    }
}

/* Print Styles */
/* ============ */
@media print {
    .signin-page {
        background: var(--white);
    }
    
    .floating-shapes,
    .loading-overlay {
        display: none !important;
    }
    
    .signin-card {
        box-shadow: none;
        border: 2px solid var(--gray-300);
    }
}