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

:root {
    --primary-color: #1E88E5;
    --primary-dark: #1976D2;
    --secondary-color: #FF7043;
    --accent-color: #43A047;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #43A047;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #64B5F6;
    --primary-dark: #42A5F5;
    --secondary-color: #FF8A65;
    --accent-color: #81C784;
    --text-primary: #FFFFFF;
    --text-secondary: #E0E0E0;
    --text-light: #E0E0E0;
    --background: #121212;
    --background-secondary: #1E1E1E;
    --border-color: #333333;
    --success-color: #81C784;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.5);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.6), 0 8px 10px -6px rgb(0 0 0 / 0.6);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(18, 18, 18, 0.95);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo img {
    height: 50px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.cta-button {
    background: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: var(--background-secondary);
    transform: scale(1.1);
}

[data-theme="dark"] .theme-toggle {
    border-color: var(--border-color);
}

[data-theme="dark"] .theme-toggle:hover {
    background: var(--background-secondary);
}

/* Dark Mode Form Styles */
[data-theme="dark"] .signup-form {
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select {
    background: var(--background);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.8;
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.1);
}

[data-theme="dark"] .form-group label {
    color: var(--text-secondary);
    background: var(--background);
}

/* Dark mode form note */
[data-theme="dark"] .form-note {
    color: var(--text-light);
}

/* Ensure form inputs have proper styling in light mode too */
.form-group input,
.form-group select {
    color: var(--text-primary);
    background: var(--background);
}

.form-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* Dark Mode Floating Cards */
[data-theme="dark"] .floating-card {
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.primary-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    width: fit-content;
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.button-arrow {
    transition: transform 0.3s ease;
}

.primary-button:hover .button-arrow {
    transform: translateX(4px);
}

.hero-note {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 2rem 0;
}

.floating-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 0 0 auto;
    min-width: 180px;
    max-width: 220px;
}

.card-icon {
    font-size: 1.5rem;
}

.card-text {
    font-weight: 600;
    color: var(--text-primary);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Signup Section */
.signup {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

/* Dark theme signup section - artistic gradient */
[data-theme="dark"] .signup {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 25%, #0f3460 75%, #533483 100%);
    color: var(--text-primary);
}

.signup-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.signup-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.signup-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.check {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.signup-form {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--background);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    transition: all 0.3s ease;
    pointer-events: none;
    background: var(--background);
    padding: 0 0.25rem;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: 0;
    font-size: 0.8rem;
    color: var(--primary-color);
}

.submit-button {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.button-loading {
    display: none;
}

.submit-button.loading .button-text {
    display: none;
}

.submit-button.loading .button-loading {
    display: inline;
}

.form-note {
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: center;
}

.success-message {
    display: none;
    text-align: center;
    color: var(--text-primary);
}

.success-message.show {
    display: block;
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.success-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--success-color);
}

.success-message p {
    color: var(--text-secondary);
}

/* Dark mode success message */
[data-theme="dark"] .success-message {
    color: var(--text-primary);
}

[data-theme="dark"] .success-message h3 {
    color: var(--success-color);
}

[data-theme="dark"] .success-message p {
    color: var(--text-secondary);
}

/* Error message styling for dark mode */
.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Legal Section Styles */
.legal-section {
    padding: 80px 0;
    background: var(--background);
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.legal-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}

.legal-intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    text-align: center;
}

.legal-divider {
    text-align: center;
    font-size: 1.5rem;
    color: var(--text-light);
    margin: 3rem 0;
}

.legal-section-content {
    margin-bottom: 2.5rem;
}

.legal-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    margin-top: 2rem;
}

.legal-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
}

.legal-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.legal-content ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.legal-content li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.legal-content li strong {
    color: var(--text-primary);
}

.contact-email {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
    margin-top: 1rem;
}

[data-theme="dark"] .error-message {
    color: #fca5a5;
}

/* Form input error state for dark mode */
[data-theme="dark"] .form-group input.error {
    border-color: #fca5a5;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

[data-theme="dark"] .footer {
    background: #0f0f0f;
    color: var(--text-primary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}




/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }


        /* Center CTA content and button on mobile */
        .hero-cta { align-items: center; }

    .nav-links a:not(.cta-button) {
        display: none;
    }

    .theme-toggle {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        margin-left: 0.5rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    /* Stack cards vertically on mobile */
    .hero-visual {
        flex-direction: column;
        gap: 0.75rem;
    }

    .floating-card {
        width: 90%;
        max-width: 320px;
        padding: 1rem 1.25rem;
    }


    .features-grid {
        grid-template-columns: 1fr;
    }

    .signup-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    /* Hide CTA button on very small screens for cleaner look */
    .cta-button {
        display: none;
    }

    /* Adjust nav container spacing for very small screens */
    .nav-container {
        padding: 0 1rem;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .primary-button {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .signup-form {
        padding: 1.5rem;
    }

    /* Legal section mobile styles */
    .legal-content h2 {
        font-size: 2rem;
    }

    .legal-content h3 {
        font-size: 1.5rem;
    }

    .legal-content h4 {
        font-size: 1.1rem;
    }

    .legal-intro {
        font-size: 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}
/* Logo styling */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    height: 48px; /* adjust if needed */
    width: auto;
    display: block;
}

.brand-text {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text; /* standard prop for compatibility */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}