/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeInDown 0.8s ease-out;
}

.header-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    display: inline-block;
    animation: bounce 2s infinite;
}

.tagline {
    font-size: 1.2rem;
    color: #666;
    font-weight: 300;
}

/* Main Content - Placeholder */
.main-content {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Auth Main Content */
.auth-main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    gap: 30px;
}

.placeholder-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 25px;
    padding: 60px 50px;
    text-align: center;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.placeholder-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #667eea);
    background-size: 200% 100%;
    animation: gradientShift 3s ease-in-out infinite;
}

.placeholder-icon {
    margin-bottom: 30px;
}

.icon-animation {
    font-size: 4rem;
    animation: bounce 2s infinite;
}

.placeholder-card h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.placeholder-description {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.btn-icon {
    font-size: 1.2rem;
    animation: pulse 2s infinite;
}

.features-preview {
    margin-top: 50px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px;
    border-radius: 12px;
    background: rgba(102, 126, 234, 0.05);
    transition: all 0.3s ease;
    min-width: 120px;
}

.feature-item:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.feature-item span:last-child {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

/* Auth Card */
.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 25px;
    padding: 50px 40px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
    max-width: 450px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #667eea);
    background-size: 200% 100%;
    animation: gradientShift 3s ease-in-out infinite;
}

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

.auth-icon {
    margin-bottom: 20px;
}

.auth-header h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-description {
    color: #666;
    font-size: 1rem;
    line-height: 1.5;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-weight: 500;
    color: #333;
    font-size: 0.95rem;
}

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

.form-input {
    width: 100%;
    padding: 15px 50px 15px 50px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(5px);
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.form-input::placeholder {
    color: #999;
    font-weight: 400;
}

.input-icon {
    position: absolute;
    left: 15px;
    font-size: 1.2rem;
    color: #667eea;
    pointer-events: none;
}

.password-toggle {
    position: absolute;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: #667eea;
    transition: color 0.3s ease;
    padding: 5px;
    border-radius: 5px;
}

.password-toggle:hover {
    color: #764ba2;
    background: rgba(102, 126, 234, 0.1);
}

.error-message {
    color: #e74c3c;
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 5px;
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

.error-message.show {
    opacity: 1;
    transform: translateY(0);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666;
}

.checkbox-wrapper input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkbox-custom {
    background: #667eea;
    border-color: #667eea;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #764ba2;
    text-decoration: underline;
}

.btn-auth {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 55px;
}

.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.auth-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(102, 126, 234, 0.1);
}

.auth-footer p {
    color: #666;
    font-size: 0.95rem;
}

.register-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.register-link:hover {
    color: #764ba2;
    text-decoration: underline;
}

.back-to-home {
    text-align: center;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 10px;
    background: rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.back-link:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.back-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.back-link:hover .back-icon {
    transform: translateX(-3px);
}

/* Gallery Section */
.gallery-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.gallery-header h2 {
    font-size: 2rem;
    color: #333;
    font-weight: 600;
}

.gallery-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    border: 2px solid rgba(102, 126, 234, 0.3);
}

.btn-secondary:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 107, 107, 0.3);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    min-height: 200px;
}

.photo-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f8f9fa;
    animation: fadeInScale 0.5s ease-out;
}

.photo-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.photo-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.05);
}

.photo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 15px;
}

.photo-item:hover .photo-overlay {
    opacity: 1;
}

.photo-info {
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    position: relative;
    margin: 5% auto;
    max-width: 90%;
    max-height: 90%;
    text-align: center;
    animation: scaleIn 0.3s ease-out;
}

.modal-content img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #667eea;
}

.modal-controls {
    margin-top: 20px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header-content {
        padding: 30px 20px;
    }
    
    .logo {
        font-size: 2.5rem;
    }
    
    .placeholder-card {
        padding: 40px 30px;
        margin: 20px;
    }
    
    .placeholder-card h2 {
        font-size: 1.8rem;
    }
    
    .auth-card {
        padding: 40px 30px;
        margin: 20px;
    }
    
    .auth-header h2 {
        font-size: 1.8rem;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .features-preview {
        flex-direction: column;
        gap: 15px;
    }
    
    .feature-item {
        min-width: auto;
        width: 100%;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
    }
    
    .gallery-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .gallery-controls {
        justify-content: center;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
    }
    
    .modal-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 200px;
    }
}