/* Google Photos-inspired Color Scheme */
:root {
    --primary-blue: #1a73e8;
    --primary-blue-hover: #1557b0;
    --secondary-blue: #4285f4;
    --light-blue: #e8f0fe;
    --dark-text: #202124;
    --gray-text: #5f6368;
    --light-gray: #f1f3f4;
    --border-color: #dadce0;
    --white: #ffffff;
    --success-green: #34a853;
    --warning-orange: #fbbc04;
    --error-red: #ea4335;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Google Sans', 'Product Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    color: var(--dark-text);
    background-color: var(--white);
    line-height: 1.6;
}

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

/* Header */
.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 400;
    color: var(--dark-text);
}

.google-logo {
    width: 74px;
    height: 24px;
}

.logo span {
    font-weight: 400;
    letter-spacing: 0.3px;
    font-family: 'Google Sans', 'Product Sans', sans-serif;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-icon {
    color: var(--gray-text);
    text-decoration: none;
    padding: 12px;
    border-radius: 50%;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.nav-icon:hover {
    background-color: rgba(95, 99, 104, 0.1);
    transform: scale(1.05);
}

.nav-icon svg {
    width: 20px;
    height: 20px;
    transition: fill 0.2s;
}

.nav-icon:hover svg {
    fill: var(--dark-text);
}

.btn-profile {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 32px;
    color: var(--gray-text);
    transition: color 0.2s;
}

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

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 40px 0;
}

/* Shared Photos Section */
.shared-section {
    margin-bottom: 60px;
}

.share-info {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--light-blue);
    border-radius: 12px;
}

.share-avatar {
    font-size: 64px;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.share-details h1 {
    font-size: 32px;
    color: var(--dark-text);
    margin-bottom: 8px;
    font-weight: 400;
}

.share-details h1 span {
    font-weight: 500;
}

.share-meta {
    color: var(--gray-text);
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.share-meta i {
    color: var(--primary-blue);
}

.share-message {
    color: var(--dark-text);
    font-size: 16px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Photo Grid Container */
.photo-grid-container {
    position: relative;
    margin-bottom: 32px;
}

/* Photo Grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.photo-item {
    aspect-ratio: 4/3;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    background-size: cover;
    background-position: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-item:hover {
    transform: scale(1.02);
}

.photo-blur {
    position: absolute;
    inset: 0;
    backdrop-filter: blur(15px);
    background: rgba(255,255,255,0.15);
    z-index: 2;
}

/* Gallery Overlay */
.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgb(255 255 255 / 73%);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border-radius: 12px;
}

.overlay-content {
    text-align: center;
    max-width: 500px;
    padding: 40px;
}

.overlay-content i.fa-lock {
    font-size: 64px;
    color: var(--primary-blue);
    margin-bottom: 24px;
}

.overlay-content h2 {
    font-size: 32px;
    color: var(--dark-text);
    margin-bottom: 16px;
    font-weight: 400;
}

.overlay-content p {
    color: var(--gray-text);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 32px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-large {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-blue-hover);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-blue);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--light-blue);
}

.btn-text {
    background: none;
    color: var(--gray-text);
    padding: 12px 16px;
}

.btn-text:hover {
    background-color: var(--light-gray);
}

.trust-badge {
    margin-top: 24px;
    color: var(--success-green);
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.trust-badge i {
    color: var(--success-green);
}

/* Info Cards */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.info-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
}

.info-card i {
    font-size: 40px;
    color: var(--primary-blue);
    margin-bottom: 16px;
}

.info-card h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--dark-text);
}

.info-card p {
    color: var(--gray-text);
    font-size: 14px;
    line-height: 1.5;
}


/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--white);
    border-radius: 8px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.modal-content h3 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 16px;
    color: var(--dark-text);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.modal-content h3 i {
    color: var(--primary-blue);
}

.modal-content p {
    color: var(--gray-text);
    margin-bottom: 24px;
    line-height: 1.6;
}

/* Loader */
.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--light-gray);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* Progress Steps */
.progress-steps {
    margin-top: 24px;
    text-align: left;
}

.step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    background-color: var(--light-gray);
    border-radius: 4px;
    opacity: 0;
    animation: fadeInUp 0.5s forwards;
}

.step i {
    color: var(--success-green);
    font-size: 20px;
}

.step span {
    color: var(--gray-text);
    font-size: 14px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reveal Button (for presenter) */
.reveal-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--error-red);
    color: var(--white);
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(234, 67, 53, 0.4);
    z-index: 1500;
    transition: all 0.3s;
}

.reveal-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(234, 67, 53, 0.6);
}

/* Footer */
.footer {
    background-color: var(--light-gray);
    border-top: 1px solid var(--border-color);
    padding: 32px 0;
    margin-top: 60px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--gray-text);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-blue);
}

.footer-text {
    text-align: center;
    color: var(--gray-text);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .share-info {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    }

    .share-avatar {
        font-size: 48px;
    }

    .share-details h1 {
        font-size: 24px;
    }

    .share-meta {
        
        flex-direction: row;
        gap: 8px;
        place-content: center;
    
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 12px;
    }

    .overlay-content {
        padding: 24px;
    }

    .overlay-content h2 {
        font-size: 24px;
    }

    .overlay-content i.fa-lock {
        font-size: 48px;
    }

    .info-cards {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .share-details h1 {
        font-size: 20px;
    }

    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .btn-large {
        padding: 14px 32px;
        font-size: 16px;
    }
}