/* ============================
   PodConnect Landing Page Styles
   ============================ */

/* CSS Variables */
:root {
    /* Colors from Logo */
    --primary: #3b80c1;
    --primary-dark: #2d5f8f;
    --primary-light: #5fa3e0;
    --accent: #00d4ff;

    /* Neutrals */
    --white: #ffffff;
    --background: #f8f9fa;
    --background-alt: #ffffff;
    --dark: #1a1a2e;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-hero: linear-gradient(135deg, rgba(59, 128, 193, 0.1) 0%, rgba(0, 212, 255, 0.05) 100%);

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px;
    --section-padding-mobile: 60px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ============================
   Reset & Base Styles
   ============================ */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    color: var(--dark);
    background-color: var(--background);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: var(--section-padding) 0;
}

img {
    max-width: 100%;
    height: auto;
}

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

ul {
    list-style: none;
}

/* ============================
   Typography
   ============================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.75rem;
    font-weight: 700;
}

h3 {
    font-size: 1.75rem;
    font-weight: 600;
}

p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--gray-700);
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: var(--gray-100);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

.btn-large {
    padding: 16px 36px;
    font-size: 1.125rem;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray-700);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-normal);
}

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

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: all var(--transition-fast);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
}

.hero-circles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 128, 193, 0.15) 0%, rgba(59, 128, 193, 0) 70%);
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.circle-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    animation-delay: 5s;
}

.circle-3 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-title {
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: var(--gray-700);
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-stats {
    display: flex;
    gap: 48px;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.dashboard-preview {
    position: relative;
}

.preview-window {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: float-gentle 6s infinite ease-in-out;
}

@keyframes float-gentle {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.window-header {
    background: var(--gray-100);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-400);
}

.window-dots span:nth-child(1) {
    background: #ff5f56;
}

.window-dots span:nth-child(2) {
    background: #ffbd2e;
}

.window-dots span:nth-child(3) {
    background: #27c93f;
}

.window-title {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

.window-content {
    padding: 32px;
}

.preview-card {
    background: var(--gradient-hero);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    margin-bottom: 20px;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.card-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.status-ready {
    background: rgba(59, 128, 193, 0.1);
    color: var(--primary);
}

.card-progress {
    margin-top: 12px;
}

.progress-bar {
    height: 6px;
    background: var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
    transition: width 1s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.preview-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.check-icon {
    flex-shrink: 0;
}

/* ============================
   Problem/Solution Section
   ============================ */

.problem-solution {
    background: var(--white);
}

.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.icon-badge {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 24px;
}

.problem-icon {
    background: rgba(239, 68, 68, 0.1);
}

.solution-icon {
    background: rgba(34, 197, 94, 0.1);
}

.section-grid h3 {
    margin-bottom: 16px;
}

.section-grid p {
    margin-bottom: 24px;
}

.problem-list,
.solution-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.problem-list li {
    padding-left: 28px;
    position: relative;
    color: var(--gray-700);
}

.problem-list li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: #ef4444;
    font-weight: 700;
}

.solution-list li {
    padding-left: 28px;
    position: relative;
    color: var(--gray-700);
}

.solution-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: 700;
}

/* ============================
   Section Header
   ============================ */

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--gray-600);
}

/* ============================
   Key Features Section
   ============================ */

.key-features {
    background: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.5rem;
}

.feature-card > p {
    margin-bottom: 20px;
    color: var(--gray-600);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-list li {
    padding-left: 24px;
    position: relative;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ============================
   How It Works Section
   ============================ */

.how-it-works {
    background: var(--white);
}

.steps {
    max-width: 900px;
    margin: 0 auto;
}

.step {
    display: grid;
    grid-template-columns: 80px 1fr 120px;
    gap: 32px;
    align-items: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step-content h3 {
    margin-bottom: 12px;
}

.step-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    opacity: 0.3;
}

.step-connector {
    width: 2px;
    height: 60px;
    background: var(--gradient-primary);
    margin: 0 auto;
    margin-left: 39px;
    opacity: 0.3;
}

.workflow-cta {
    margin-top: 60px;
    text-align: center;
    padding: 40px;
    background: var(--gradient-hero);
    border-radius: var(--radius-lg);
}

.workflow-result {
    font-size: 1.25rem;
    margin-bottom: 24px;
    color: var(--dark);
}

/* ============================
   All Features Section
   ============================ */

.all-features {
    background: var(--background);
}

.feature-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.category {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

.category h3 {
    margin-bottom: 20px;
    color: var(--dark);
}

.category ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category ul li {
    padding-left: 28px;
    position: relative;
    color: var(--gray-700);
}

.category ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ============================
   Use Cases Section
   ============================ */

.use-cases {
    background: var(--white);
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.use-case-card {
    background: var(--gradient-hero);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 2px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.use-case-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.use-case-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.use-case-card h3 {
    margin-bottom: 12px;
}

.use-case-card > p {
    margin-bottom: 20px;
    color: var(--gray-700);
}

.use-case-card ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.use-case-card ul li {
    padding-left: 28px;
    position: relative;
    color: var(--gray-700);
}

.use-case-card ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ============================
   Pricing Section
   ============================ */

.pricing {
    background: var(--background);
}

.pricing-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--primary);
}

.pricing-content {
    padding: 60px;
    text-align: center;
}

.pricing-icon {
    font-size: 4rem;
    margin-bottom: 24px;
}

.pricing-content h3 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.pricing-content > p {
    font-size: 1.125rem;
    margin-bottom: 32px;
    color: var(--gray-700);
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
    max-width: 500px;
    margin: 0 auto 40px;
}

.pricing-features li {
    padding-left: 32px;
    position: relative;
    color: var(--gray-700);
    font-size: 1.0625rem;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.pricing-note {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 24px;
}

/* ============================
   FAQ Section
   ============================ */

.faq {
    background: var(--white);
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--background);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--primary-light);
}

.faq-question {
    padding: 24px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.faq-icon {
    flex-shrink: 0;
    color: var(--primary);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 28px 24px;
}

.faq-answer p {
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================
   Final CTA Section
   ============================ */

.final-cta {
    background: var(--gradient-primary);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content > p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    margin-bottom: 24px;
}

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

.cta-buttons .btn-primary:hover {
    transform: translateY(-2px) scale(1.05);
}

.cta-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

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

.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: var(--gray-400);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: 16px;
    font-size: 1rem;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-column a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ============================
   Animations
   ============================ */

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

.fade-in {
    animation: fadeInUp 0.8s ease;
}

.fade-in-delay-1 {
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.fade-in-delay-3 {
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

/* Scroll Fade Animation */
.scroll-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-fade.visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 1024px) {
    h1 {
        font-size: 2.75rem;
    }

    h2 {
        font-size: 2.25rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-visual {
        order: 2;
    }

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

    .feature-categories {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    section {
        padding: var(--section-padding-mobile) 0;
    }

    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.875rem;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 60px;
    }

    .hero-cta {
        flex-direction: column;
        gap: 12px;
    }

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

    .hero-stats {
        gap: 32px;
    }

    .section-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .step {
        grid-template-columns: 60px 1fr;
        gap: 20px;
    }

    .step-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .step-visual {
        display: none;
    }

    .step-connector {
        margin-left: 29px;
    }

    .use-case-grid {
        grid-template-columns: 1fr;
    }

    .pricing-content {
        padding: 40px 24px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.875rem;
    }

    h2 {
        font-size: 1.625rem;
    }

    .hero-subtitle {
        font-size: 1.0625rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .feature-card {
        padding: 28px;
    }

    .category {
        padding: 28px;
    }

    .use-case-card {
        padding: 28px;
    }
}