/* ==========================================
   CSS Variables & Reset
   ========================================== */

:root {
    /* Colors - Refined Editorial Palette */
    --color-primary: #1a3a52;
    --color-primary-light: #2d5a7b;
    --color-primary-dark: #0f2739;
    --color-accent: #c67d4a;
    --color-accent-light: #d4945f;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-background: #fafaf9;
    --color-surface: #ffffff;
    --color-border: #e5e5e5;
    
    /* Typography */
    --font-display: 'Crimson Pro', serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ==========================================
   Navigation
   ========================================== */

.nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(250, 250, 249, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    animation: navSlideDown 0.8s ease-out;
}

@keyframes navSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.logo-penn {
    color: var(--color-primary);
}

.logo-analytics {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

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

.nav-tools {
    color: var(--color-primary);
}

.nav-cta {
    background: var(--color-primary);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 6px;
    transition: var(--transition-smooth);
}

.nav-cta:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

.nav-cta::after {
    display: none;
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 2rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(26, 58, 82, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(26, 58, 82, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridFloat 20s ease-in-out infinite;
}

@keyframes gridFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 30px); }
}

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at 30% 50%, 
        rgba(198, 125, 74, 0.08) 0%, 
        transparent 50%
    ),
    radial-gradient(
        circle at 80% 80%, 
        rgba(26, 58, 82, 0.05) 0%, 
        transparent 50%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    text-align: center;
    animation: heroFadeIn 1s ease-out 0.3s both;
}

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

.hero-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: 4px;
    animation: heroFadeIn 1s ease-out 0.5s both;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: 300;
    line-height: 1.1;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    animation: heroFadeIn 1s ease-out 0.7s both;
}

.hero-title-accent {
    display: block;
    font-weight: 600;
    color: var(--color-primary-dark);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1.8;
    animation: heroFadeIn 1s ease-out 0.9s both;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: heroFadeIn 1s ease-out 1.1s both;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    animation: heroFadeIn 1s ease-out 1.3s both, scrollBounce 2s ease-in-out infinite;
}

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

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
}

/* ==========================================
   Buttons
   ========================================== */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(26, 58, 82, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ==========================================
   Section Shared Styles
   ========================================== */

.section-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--section-padding) 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 1.5rem auto 0;
}

/* ==========================================
   Services Section
   ========================================== */

.services {
    background: var(--color-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    padding: 2.5rem;
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

.service-card-featured {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
}

.service-card-featured .service-icon {
    color: var(--color-accent-light);
}

.service-card-featured .service-title,
.service-card-featured .service-description,
.service-card-featured .service-list {
    color: white;
}

.service-icon {
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.service-description {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-list {
    list-style: none;
    padding: 0;
}

.service-list li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.service-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.service-card-featured .service-list li::before {
    color: var(--color-accent-light);
}

/* ==========================================
   Tools Section
   ========================================== */

.tools {
    background: linear-gradient(to bottom, var(--color-background), var(--color-surface));
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    padding: 2.5rem;
    border-radius: 16px;
    transition: var(--transition-smooth);
    cursor: pointer;
    display: block;
}

.tool-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.tool-card-coming {
    cursor: default;
    opacity: 0.7;
}

.tool-card-coming:hover {
    transform: none;
    border-color: var(--color-border);
}

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.tool-icon {
    color: var(--color-accent);
}

.tool-badge {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.4rem 0.8rem;
    background: var(--color-accent);
    color: white;
    border-radius: 4px;
}

.tool-badge-soon {
    background: var(--color-text-light);
}

.tool-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.tool-description {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.tool-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tool-feature {
    font-size: 0.875rem;
    padding: 0.4rem 0.8rem;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
}

.tool-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-accent);
    transition: var(--transition-smooth);
}

.tool-card:hover .tool-link {
    gap: 1rem;
}

/* ==========================================
   About Section
   ========================================== */

.about {
    background: var(--color-surface);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-paragraph {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

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

.stat-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    border-color: var(--color-accent);
    transform: translateX(8px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================
   Contact Section
   ========================================== */

.contact {
    background: var(--color-background);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-detail {
    display: flex;
    gap: 1rem;
}

.contact-detail-icon {
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-detail-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.contact-detail-value {
    color: var(--color-text);
    line-height: 1.6;
}

.contact-detail-value a:hover {
    color: var(--color-accent);
}

/* Form Styles */

.contact-form-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 2.5rem;
    border-radius: 12px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-background);
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(198, 125, 74, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background: var(--color-primary-dark);
    color: white;
}

.footer-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--color-accent-light);
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.75rem;
    transition: var(--transition-smooth);
}

.footer-column a:hover {
    color: white;
    padding-left: 0.5rem;
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ==========================================
   Responsive Design
   ========================================== */

/* ==========================================
   Responsive Design
   ========================================== */

/* Tool Access Page Styles */
.hero-small {
    min-height: 60vh;
}

.tool-access-section {
    background: var(--color-surface);
    padding: var(--section-padding) 0;
}

.tool-access-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.tool-access-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.tool-features-list {
    margin-bottom: 2.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    line-height: 1.6;
}

.tool-requirements {
    background: var(--color-background);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
    margin-bottom: 2rem;
}

.tool-note {
    display: flex;
    gap: 1rem;
    align-items: start;
    background: rgba(198, 125, 74, 0.05);
    padding: 1.25rem;
    border-radius: 8px;
    border: 1px solid rgba(198, 125, 74, 0.2);
}

.tool-note p {
    margin: 0;
    color: var(--color-text);
    line-height: 1.6;
}

.tool-access-form-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 2.5rem;
    border-radius: 12px;
    position: sticky;
    top: 100px;
}

.form-header {
    margin-bottom: 2rem;
}

.form-header h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--color-text-light);
    line-height: 1.6;
}

.form-privacy {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 1rem;
    line-height: 1.5;
    text-align: center;
}

.additional-info {
    background: var(--color-background);
    padding: var(--section-padding) 0;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.info-card {
    text-align: center;
    padding: 2rem;
}

.info-icon {
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.info-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.info-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 5rem 0;
    text-align: center;
}

.cta-content h2 {
    color: white !important;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9) !important;
}

@media (max-width: 968px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .about-content,
    .contact-grid,
    .footer-content,
    .tool-access-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .tool-access-form-container {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .nav-links {
        gap: 1.5rem;
    }
    
    .nav-links a {
        font-size: 0.875rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .nav-links {
        display: none;
    }
}