/* PathLine Travel Planner - Modern Minimalist Design */
/* Color Palette: Calm travel-inspired pastels */

:root {
    --primary: #4A90A4;
    --primary-dark: #357489;
    --primary-light: #6BB3C9;
    --secondary: #7CB98B;
    --secondary-dark: #5A9A6A;
    --accent: #E8B86D;
    --accent-dark: #D4A055;
    --background: #F8FAFB;
    --surface: #FFFFFF;
    --text-primary: #2D3748;
    --text-secondary: #718096;
    --text-light: #A0AEC0;
    --border: #E2E8F0;
    --success: #48BB78;
    --error: #F56565;
    --shadow: rgba(74, 144, 164, 0.1);
    --shadow-hover: rgba(74, 144, 164, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    background: var(--surface);
    box-shadow: 0 2px 10px var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: 1rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
    white-space: nowrap;
    flex-shrink: 0;
}

.navbar-brand svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    flex-shrink: 0;
}

.navbar-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    white-space: nowrap;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--primary);
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-shrink: 0;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding-top: 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--background) 0%, #E6F3F7 50%, #F0F7F4 100%);
    overflow: hidden;
}

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

.hero-content {
    text-align: left;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-content h1 span {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Device Mockup */
.device-mockup {
    position: relative;
    max-width: 300px;
    margin: 0 auto;
}

.device-frame {
    position: relative;
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 40px;
    padding: 12px;
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.device-frame::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #000;
    border-radius: 0 0 15px 15px;
    z-index: 10;
}

.device-screen {
    border-radius: 28px;
    overflow: hidden;
    background: #000;
}

.device-screen img {
    width: 100%;
    height: auto;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 14px var(--shadow);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

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

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

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

.btn-accent:hover {
    background: var(--accent-dark);
    color: white;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Sections */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--background);
    border-radius: 16px;
    padding: 2rem;
    text-align: left;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.feature-card h3 {
    margin-bottom: 0.75rem;
}

.feature-card p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Screenshots Section */
.screenshots {
    background: linear-gradient(180deg, var(--background) 0%, #E6F3F7 100%);
    padding: 4rem 0;
    max-height: 500px;
    overflow: hidden;
}

.screenshot-carousel {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    height: 380px;
}

.carousel-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    height: 100%;
}

.carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--surface);
    border: 2px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    color: var(--primary);
}

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

.carousel-btn svg {
    width: 24px;
    height: 24px;
}

.carousel-track {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    max-width: 320px;
    height: 100%;
}

.carousel-slide {
    display: none;
    width: 100%;
}

.carousel-slide.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.carousel-slide .device-mockup {
    max-width: 240px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: var(--primary);
    transform: scale(1.2);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.cta .btn-primary:hover {
    background: var(--background);
}

.cta .btn-secondary {
    background: transparent;
    border-color: white;
    color: white;
}

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

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1.25rem;
    font-size: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-light);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-section p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Page Header */
.page-header {
    padding-top: 120px;
    padding-bottom: 3rem;
    background: linear-gradient(135deg, var(--background) 0%, #E6F3F7 100%);
    text-align: center;
}

.page-header h1 {
    margin-bottom: 0.5rem;
}

.page-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* Content Sections */
.content-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.content-section h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}

.content-section h2:first-child {
    margin-top: 0;
}

.content-section h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--primary-dark);
}

.content-section p {
    text-align: left;
    margin-bottom: 1rem;
}

.content-section ul,
.content-section ol {
    text-align: left;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

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

.content-section a {
    color: var(--primary);
    text-decoration: underline;
}

.content-section a:hover {
    color: var(--primary-dark);
}

/* Contact Form */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.contact-info h2 {
    margin-bottom: 1rem;
}

.contact-info p {
    text-align: left;
    margin-bottom: 2rem;
}

.contact-details {
    list-style: none;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.contact-details svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-form {
    background: var(--surface);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
    background: var(--background);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input[type="file"] {
    padding: 0.75rem;
}

.contact-form .btn {
    width: 100%;
}

.form-success {
    display: none;
    text-align: center;
    padding: 2rem;
}

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

.form-success svg {
    width: 64px;
    height: 64px;
    color: var(--success);
    margin-bottom: 1rem;
}

/* Privacy Accept Button */
.privacy-accept-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    padding: 1rem;
    box-shadow: 0 -4px 20px var(--shadow);
    z-index: 9999;
    text-align: center;
}

.privacy-accept-container .btn {
    min-width: 200px;
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        text-align: center;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .device-mockup {
        max-width: 250px;
    }

    .contact-section {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-info {
        text-align: center;
    }

    .contact-info p {
        text-align: center;
    }

    .contact-details {
        display: inline-block;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        gap: 0.5rem;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .navbar-brand svg {
        width: 28px;
        height: 28px;
    }

    .menu-toggle {
        display: block;
    }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: 0 10px 20px var(--shadow);
    }

    .navbar-menu.active {
        display: flex;
    }

    .navbar-menu li {
        border-bottom: 1px solid var(--border);
    }

    .navbar-menu li:last-child {
        border-bottom: none;
    }

    .navbar-menu a {
        display: block;
        padding: 1rem;
    }

    .hero {
        padding-top: 80px;
        min-height: auto;
        padding-bottom: 3rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

    section {
        padding: 3rem 0;
    }

    .screenshots {
        max-height: 400px;
        padding: 2rem 0;
    }

    .screenshot-carousel {
        height: 320px;
    }

    .carousel-slide .device-mockup {
        max-width: 180px;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-section ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .footer-section ul li {
        margin-bottom: 0;
    }
}

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

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .device-mockup {
        max-width: 200px;
    }

    .carousel-slide .device-mockup {
        max-width: 160px;
    }

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

    .content-section {
        padding: 2rem 1rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

/* Orientation changes */
@media (orientation: landscape) and (max-height: 500px) {
    .hero {
        min-height: auto;
        padding: 100px 0 2rem;
    }

    .screenshots {
        max-height: 350px;
    }

    .screenshot-carousel {
        height: 280px;
    }
}

/* Print styles */
@media print {
    .navbar,
    .privacy-accept-container,
    .carousel-btn,
    .lightbox {
        display: none !important;
    }

    body {
        background: white;
    }

    .hero {
        padding-top: 0;
    }
}