/* Login Page Specific Styles */

.auth-section {
    min-height: calc(100vh - var(--header-height-desktop));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) 0;
    background: linear-gradient(135deg, #faf8f5 0%, #ebceb2 50%, #f5f0e8 100%);
    position: relative;
    overflow: hidden;
}

.auth-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(235, 206, 178, 0.15) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
}

.auth-section::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
    pointer-events: none;
}

.auth-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    min-height: 0;
}

.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--space-6);
    padding: var(--space-12);
    box-shadow: 
        0 25px 50px -12px rgba(57, 18, 25, 0.25),
        0 0 0 1px rgba(235, 206, 178, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(235, 206, 178, 0.2);
    transition: all var(--transition-base);
    transform: translateY(0);
    opacity: 1;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(235, 206, 178, 0.5), transparent);
}

.auth-card:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 32px 64px -12px rgba(57, 18, 25, 0.3),
        0 0 0 1px rgba(235, 206, 178, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.register-card {
    display: none;
    visibility: hidden;
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    pointer-events: none;
}

.register-card.active {
    display: block;
    visibility: visible;
    pointer-events: all;
}

.auth-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    transform: translateX(0);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.auth-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-100), var(--secondary-200));
    border-radius: 50%;
    margin-bottom: var(--space-6);
    color: var(--secondary-600);
    box-shadow: 
        0 10px 25px -5px rgba(236, 72, 153, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    position: relative;
    overflow: hidden;
}

.auth-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s ease-in-out infinite;
}

.auth-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--space-3);
    background: linear-gradient(135deg, var(--secondary-600), var(--primary-200));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.auth-subtitle {
    color: var(--neutral-600);
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin-bottom: 0;
    font-weight: 400;
    line-height: 1.5;
}

.auth-form {
    margin-bottom: var(--space-8);
}

.form-group {
    margin-bottom: var(--space-6);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--space-3);
    font-weight: 600;
    color: var(--neutral-700);
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    letter-spacing: 0.01em;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: var(--space-4);
    color: var(--neutral-400);
    z-index: 2;
    transition: all var(--transition-base);
    pointer-events: none;
}

.auth-form input {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
    border: 2px solid var(--neutral-200);
    border-radius: var(--space-3);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    transition: all var(--transition-base);
    background: rgba(255, 255, 255, 0.8);
    color: var(--neutral-800);
    font-family: var(--font-sans);
    min-height: 56px;
    box-sizing: border-box;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.auth-form input::placeholder {
    color: var(--neutral-400);
    font-weight: 400;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--secondary-400);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 
        0 0 0 4px rgba(236, 72, 153, 0.15),
        0 4px 12px -2px rgba(236, 72, 153, 0.2);
    transform: translateY(-1px);
}

.auth-form input:focus + .input-icon,
.input-container:focus-within .input-icon {
    color: var(--secondary-500);
    transform: scale(1.1);
}

.auth-form input:valid {
    border-color: var(--secondary-300);
    background: rgba(255, 255, 255, 0.9);
}

.auth-form input.error {
    border-color: var(--burgundy-600);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 0 4px rgba(57, 18, 25, 0.1);
}

.password-toggle {
    position: absolute;
    right: var(--space-4);
    background: none;
    border: none;
    color: var(--neutral-400);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--space-2);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    width: 40px;
    height: 40px;
}

.password-toggle:hover {
    color: var(--secondary-600);
    background: rgba(236, 72, 153, 0.1);
    transform: scale(1.05);
}

.password-toggle:focus {
    outline: 2px solid var(--secondary-400);
    outline-offset: 2px;
}

.eye-icon {
    transition: all var(--transition-base);
}

.password-toggle.active .eye-icon {
    color: var(--secondary-600);
    transform: scale(1.1);
}

.auth-submit-btn {
    margin-top: var(--space-8);
    padding: var(--space-4) var(--space-6);
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 600;
    min-height: 56px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    letter-spacing: 0.01em;
    background: linear-gradient(135deg, var(--secondary-600), var(--secondary-700));
    box-shadow: 
        0 10px 25px -5px rgba(236, 72, 153, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.auth-submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

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

.auth-submit-btn:hover {
    background: linear-gradient(135deg, var(--secondary-700), var(--secondary-800));
    transform: translateY(-2px);
    box-shadow: 
        0 15px 35px -5px rgba(236, 72, 153, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-text {
    position: relative;
    z-index: 2;
}

.btn-icon {
    position: relative;
    z-index: 2;
    transition: all var(--transition-base);
}

.auth-submit-btn:hover .btn-icon {
    transform: translateX(2px);
}

.auth-submit-btn.loading {
    color: transparent;
    cursor: not-allowed;
    opacity: 0.8;
}

.auth-submit-btn.loading .btn-text,
.auth-submit-btn.loading .btn-icon {
    opacity: 0;
}

.auth-submit-btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid transparent;
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 3;
}

.auth-divider {
    text-align: center;
    margin: var(--space-8) 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neutral-300), transparent);
    z-index: 1;
}

.auth-divider span {
    background: rgba(255, 255, 255, 0.95);
    padding: 0 var(--space-6);
    color: var(--neutral-500);
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    position: relative;
    z-index: 2;
    font-weight: 500;
}

.help-text {
    color: var(--neutral-500);
    font-size: clamp(0.75rem, 1.25vw, 0.875rem);
    margin-top: var(--space-2);
    line-height: 1.4;
    font-weight: 400;
}

/* Form validation states */
.form-group.success input {
    border-color: var(--secondary-400);
    background: rgba(236, 72, 153, 0.02);
}

.form-group.success .input-icon {
    color: var(--secondary-500);
}

.form-group.error input {
    border-color: var(--burgundy-600);
    background: rgba(57, 18, 25, 0.02);
}

.form-group.error .input-icon {
    color: var(--burgundy-500);
}

.form-group.error .help-text {
    color: var(--burgundy-600);
}

.error-message {
    color: var(--burgundy-600);
    font-size: clamp(0.75rem, 1.25vw, 0.875rem);
    margin-top: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 500;
}

.error-message::before {
    content: '⚠';
    font-size: 1em;
    color: var(--burgundy-500);
}

/* Animation for form switching */
.auth-card.slide-out {
    opacity: 0;
    transform: translateX(-30px);
    pointer-events: none;
}

#login-card {
    position: relative;
    z-index: 2;
}

#register-card {
    z-index: 1;
}

/* Secondary button styling */
.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: var(--neutral-700);
    border: 2px solid var(--neutral-200);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    min-height: 56px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: var(--secondary-300);
    color: var(--secondary-600);
    transform: translateY(-1px);
    box-shadow: 0 8px 25px -8px rgba(236, 72, 153, 0.3);
}

.btn-secondary:hover .btn-icon {
    transform: translateX(2px);
    color: var(--secondary-600);
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    50% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
    100% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
}

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

/* Enhanced mobile responsiveness */
@media (max-width: 768px) {
    .auth-section {
        padding: var(--space-8) 0;
        min-height: calc(100vh - var(--header-height-mobile));
    }

    .auth-container {
        padding: 0 var(--space-4);
    }

    .auth-card {
        padding: var(--space-8);
        border-radius: var(--space-4);
    }

    .auth-icon {
        width: 64px;
        height: 64px;
        margin-bottom: var(--space-4);
    }

    .auth-form input {
        min-height: 52px;
        font-size: 16px; /* Prevents zoom on iOS */
        padding: var(--space-3) var(--space-3) var(--space-3) var(--space-10);
    }

    .input-icon {
        left: var(--space-3);
    }

    .password-toggle {
        right: var(--space-3);
        width: 36px;
        height: 36px;
    }

    .auth-submit-btn,
    .btn-secondary {
        min-height: 52px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .auth-section {
        padding: var(--space-6) 0;
        min-height: calc(100vh - var(--header-height-small));
    }

    .auth-card {
        padding: var(--space-6);
        border-radius: var(--space-3);
        margin: 0 var(--space-2);
    }

    .auth-icon {
        width: 56px;
        height: 56px;
    }

    .auth-title {
        font-size: 1.75rem;
    }

    .auth-subtitle {
        font-size: 1rem;
    }

    .form-group {
        margin-bottom: var(--space-5);
    }

    .auth-submit-btn,
    .btn-secondary {
        min-height: 48px;
        padding: var(--space-3) var(--space-4);
        gap: var(--space-2);
    }
}

/* Focus management for accessibility */
.auth-form input:focus-visible {
    outline: 2px solid var(--secondary-400);
    outline-offset: 2px;
}

.btn:focus-visible {
    outline: 2px solid var(--secondary-400);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .auth-card {
        background: white;
        border: 3px solid var(--neutral-800);
    }

    .auth-form input {
        border: 2px solid var(--neutral-600);
        background: white;
    }

    .auth-form input:focus {
        border: 3px solid var(--secondary-600);
    }

    .auth-icon {
        background: var(--secondary-200);
        border: 2px solid var(--secondary-600);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .auth-card,
    .register-card,
    .auth-form input,
    .password-toggle,
    .auth-submit-btn,
    .btn-secondary,
    .input-icon,
    .btn-icon {
        transition: none;
    }

    .auth-section::before,
    .auth-section::after {
        animation: none;
    }

    .auth-icon::before {
        animation: none;
    }

    .auth-submit-btn::before {
        display: none;
    }

    .auth-card:hover,
    .auth-submit-btn:hover,
    .btn-secondary:hover {
        transform: none;
    }
}

/* Print styles */
@media print {
    .auth-section {
        background: white;
        min-height: auto;
    }

    .auth-section::before,
    .auth-section::after {
        display: none;
    }

    .auth-card {
        background: white;
        box-shadow: none;
        border: 2px solid var(--neutral-300);
    }

    .auth-icon {
        background: var(--neutral-100);
    }
}

/* Perfect centering for all viewport sizes */
@media (min-height: 700px) {
    .auth-section {
        min-height: calc(100vh - var(--header-height-desktop));
    }
}

@media (max-height: 700px) {
    .auth-section {
        min-height: auto;
        padding: var(--space-8) 0;
    }
    
    .auth-card {
        margin: var(--space-6) 0;
    }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 600px) {
    .auth-section {
        padding: var(--space-4) 0;
    }
    
    .auth-card {
        padding: var(--space-6);
        margin: var(--space-4) 0;
    }
    
    .auth-icon {
        width: 56px;
        height: 56px;
        margin-bottom: var(--space-4);
    }
    
    .form-group {
        margin-bottom: var(--space-4);
    }
}