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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: white;
    min-height: 100vh;
}

.container {
    margin: 0 auto;
    padding: 10px 100px;
}

/* Navbar */
.navbar {
    background: white;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    margin: 0 auto;
    padding: 10px 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo-img {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
}

.nav-tabs {
    display: flex;
    gap: 32px;
}

.nav-tab {
    color: #6b7280;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    padding: 8px 0;
    position: relative;
}

.nav-tab:hover {
    color: #1f2937;
}

.nav-tab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #667eea;
    transition: width 0.2s ease;
}

.nav-tab:hover::after {
    width: 100%;
}

.navbar-right {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.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;
}

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

.btn-secondary {
    background: transparent;
    color: #6b7280;
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background: #f9fafb;
    color: #374151;
    border-color: #9ca3af;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Hero Section */
.hero {
    background: white;
    padding: 80px 0;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-content {
    background-color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: 80px;
    text-align: center;
}

/* GPT-4 Chip */
.gpt-chip {
    display: inline-block;
    background: white;
    color: #1f2937;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid #6b7280;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hero-header {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: #1f2937;
    margin: 0px 25% 0px 25%;
    line-height: 1.2;
}

.hero-header em {
    font-style: italic;
}

.hero-tagline {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: #6b7280;
    line-height: 1.6;
    margin: 10px 30% 0px 30%;
    font-weight: 500;
}

/* Hero Image Placeholder */
.hero-image-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}

.placeholder-image {
    width: 500px;
    height: 200px;
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    border-radius: 16px;
    border: 2px dashed #d1d5db;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    font-size: 0.9rem;
    font-weight: 500;
}

.placeholder-image::before {
    content: "Placeholder Image";
}

/* Integration Section */
.integration-section {
    text-align: center;
    margin-top: 40px;
}

.integration-subheader {
    font-size: 1.25rem;
    font-weight: 600;
    color: #6b7280;
    margin-top: 32px;
    margin-bottom: 0px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.integration-images {
    display: flex;
    gap: 24px;
    justify-content: center;
    align-items: center;
}

.integration-logo {
    width: 120px;
    height: 80px;
    object-fit: contain;
    transition: all 0.3s ease;
}

.integration-logo:hover {
    transform: scale(1.05);
}

.email-section {
    margin: 40px 0 40px 0;
}

.email-title {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.email-form {
    margin-bottom: 20px;
}

.input-group {
    display: flex;
    flex-direction: row;
    gap: 12px;
    flex-wrap: nowrap;
    align-items: center;
}

.input-group input {
    flex: 1;
    min-width: 0;
    padding: 16px 20px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
}

.input-group input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.input-group input::placeholder {
    color: #9ca3af;
}

.input-group button {
    padding: 16px 32px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    min-width: 120px;
    position: relative;
    overflow: hidden;
    margin-right: 0;
}

.input-group button::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;
}

.input-group button:hover::before {
    left: 100%;
}

.input-group button:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.input-group button:active {
    transform: translateY(0);
}

.hero-image {
    margin-top: 50px;
    width: 100%;
    height: auto;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.hero-image:hover {
    transform: scale(1.02);
}

/* Divider */
.divider {
    height: 1px;
    background: #e5e7eb;
    margin: 80px 0;
}

/* Integration Section */
.integration {
    text-align: center;
    padding: 60px 0;
}

.integration-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 40px;
}

/* Bottom Waitlist Section */
.bottom-waitlist {
    background: #f8fafc;
    padding: 80px 0;
    margin: 80px 0;
    border-radius: 24px;
}

.bottom-waitlist-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.bottom-waitlist-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 20px;
}

.bottom-waitlist-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    margin-bottom: 40px;
    line-height: 1.6;
}

.bottom-email-form {
    margin-bottom: 20px;
}

.bottom-input-group {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
    flex-wrap: wrap;
    justify-content: center;
}

.bottom-input-group input {
    flex: 1;
    min-width: 300px;
    padding: 16px 20px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
}

.bottom-input-group input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.bottom-input-group input::placeholder {
    color: #9ca3af;
}

.bottom-input-group button {
    padding: 16px 32px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    min-width: 120px;
    position: relative;
    overflow: hidden;
}

.bottom-input-group button::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;
}

.bottom-input-group button:hover::before {
    left: 100%;
}

.bottom-input-group button:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.bottom-input-group button:active {
    transform: translateY(0);
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 0;
    color: #6b7280;
    font-size: 0.875rem;
    border-top: 1px solid #e5e7eb;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.support-link,
.footer-link {
    color: #6b7280;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.support-link:hover,
.footer-link:hover {
    color: #374151;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .hero-left {
        max-width: 100%;
        text-align: center;
    }
    
    .input-group {
        justify-content: center;
        margin: 0 auto;
    }
    
    .bottom-input-group {
        justify-content: center;
    }
    
    .integration-images {
        gap: 16px;
    }
    
    .integration-logo {
        width: 100px;
        height: 70px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .navbar-container {
        padding: 0 16px;
    }
    
    .navbar-left {
        gap: 24px;
    }
    
    .nav-tabs {
        gap: 20px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-content {
        gap: 40px;
        margin-bottom: 60px;
    }
    
    .input-group {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        margin: 0 auto;
    }
    
    .input-group input {
        min-width: auto;
        width: 100%;
    }
    
    .input-group button {
        width: 100%;
    }
    
    .placeholder-image {
        width: 150px;
        height: 150px;
    }
    
    .integration-images {
        flex-wrap: wrap;
        gap: 16px;
        justify-content: center;
    }
    
    .integration-logo {
        width: 90px;
        height: 60px;
    }
    
    .bottom-waitlist {
        padding: 60px 0;
        margin: 60px 0;
    }
    
    .bottom-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .bottom-input-group input {
        min-width: auto;
    }
    
    .bottom-input-group button {
        width: 100%;
    }
    
    .footer-links {
        gap: 16px;
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    .navbar-left {
        gap: 16px;
    }
    
    .nav-tabs {
        display: none;
    }
    
    .navbar-right {
        gap: 12px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .hero-header {
        font-size: 2rem;
    }
    
    .hero-tagline {
        font-size: 1rem;
    }
    
    .gpt-chip {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .placeholder-image {
        width: 120px;
        height: 120px;
    }
    
    .integration-images {
        gap: 12px;
    }
    
    .integration-logo {
        width: 80px;
        height: 55px;
    }
    
    .bottom-waitlist-title {
        font-size: 1.75rem;
    }
    
    .bottom-waitlist-subtitle {
        font-size: 1rem;
    }
}

/* Loading State */
.btn-loading {
    display: none;
}

.loading .btn-text {
    display: none;
}

.loading .btn-loading {
    display: inline;
}

/* Success State */
.success {
    background: #10b981;
}

.success:hover {
    background: #059669;
}

/* Error State */
.error {
    background: #ef4444;
}

.error:hover {
    background: #dc2626;
}

/* Error Message */
.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 8px;
    text-align: left;
}

/* Focus state for input */
.input-group.focused input {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}