/* ==========================================================================
   TABLE OF CONTENTS
   ==========================================================================
   1.  Global Styles & Variables
   2.  Typography
   3.  Layout & General Components
   4.  Header & Navigation
   5.  Hero Section
   6.  Projects Section
   7.  About Section
   8.  Process Section
   9.  Pricing Section
   10. Contact Section
   11. Footer
   12. Animations & Effects
   13. Responsive Design
   ========================================================================== */

/* ==========================================================================
   1. Global Styles & Variables
   ========================================================================== */
:root {
    --color-bg: #0B1220;
    --color-bg-secondary: #101827;
    --color-card: #141C2B;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-text-primary: #F8FAFC;
    --color-text-secondary: #CBD5E1;
    --color-text-muted: #94A3B8;
    --color-accent-primary: #5B8CFF;
    --color-accent-secondary: #7DD3FC;

    --font-main: 'Inter', sans-serif;

    --header-height: 80px;
    --border-radius: 16px;
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-strong: 0 12px 32px rgba(0, 0, 0, 0.25);
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
    --transition-ultra-smooth: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto 5rem auto;
}

p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
}

/* ==========================================================================
   3. Layout & General Components
   ========================================================================== */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 8rem 0;
    overflow: hidden;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    transition: all var(--transition-smooth);
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-accent-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(91, 140, 255, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-accent-secondary);
    color: var(--color-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(125, 211, 252, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-tertiary {
    color: var(--color-text-secondary);
    font-weight: 500;
    background: none;
}

.btn-tertiary span {
    display: inline-block;
    transition: transform var(--transition-fast);
}

.btn-tertiary:hover {
    color: var(--color-text-primary);
}

.btn-tertiary:hover span {
    transform: translateX(4px);
}

/* ==========================================================================
   4. Header & Navigation
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: background-color var(--transition-smooth), padding var(--transition-smooth), border-color var(--transition-smooth);
    border-bottom: 1px solid transparent;
}

.main-header.scrolled {
    background-color: rgba(11, 18, 32, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: calc(var(--header-height) - 3rem);
}

.logo {
    font-family: var(--font-main);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin: 0 0.5rem;
}

.nav-links a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
    transition: color var(--transition-smooth);
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -2px;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-secondary);
    transition: width var(--transition-smooth), left var(--transition-smooth);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
    left: 0;
}

.nav-links a.active {
    color: var(--color-text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-cta {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--color-text-primary);
}

.nav-cta:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
}

.hamburger { display: none; background: none; border: none; cursor: pointer; z-index: 1001; }
.hamburger-line { display: block; width: 24px; height: 2px; background-color: var(--color-text-primary); margin: 5px 0; transition: all 0.3s ease; }

/* ==========================================================================
   5. Hero Section
   ========================================================================== */
.hero-section {
    padding: calc(var(--header-height) + 4rem) 0 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 5rem;
}

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

.hero-headline {
    font-size: 3.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.hero-subheading {
    font-size: 1.2rem;
    max-width: 500px;
    margin-bottom: 2.5rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.hero-cta {
    margin-bottom: 3rem;
}

.hero-cta .btn {
    margin-right: 1rem;
}

.trust-indicators {
    display: flex;
    gap: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.trust-indicators span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-browser-mockup {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: var(--shadow-strong);
    animation: float 6s ease-in-out infinite;
}

.hero-browser-mockup img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    border-bottom-left-radius: 11px;
    border-bottom-right-radius: 11px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: 
        radial-gradient(circle at 15% 20%, rgba(91, 140, 255, 0.1), transparent 35%),
        radial-gradient(circle at 85% 80%, rgba(125, 211, 252, 0.08), transparent 40%);
}

/* ==========================================================================
   6. Projects Section
   ========================================================================== */
.projects-section {
    padding-top: 4rem;
    background-color: var(--color-bg);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.project-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: var(--border-radius);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.project-card-link:hover .project-card {
    transform: translateY(-6px);
    box-shadow: var(--shadow-strong);
}

.project-card-link:hover .arrow {
    transform: translateX(4px);
}

.project-card-link:hover .project-card .browser-mockup {
    transform: scale(1.02);
}

.project-card {
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.project-card .browser-mockup {
    border-radius: 0;
    border-top: none;
    border-left: none;
    border-right: none;
    box-shadow: none;
    border-bottom: 1px solid var(--color-border);
    animation: none; /* Disable floating animation for project cards */
    transition: transform var(--transition-smooth);
}

.project-card .browser-mockup img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    object-position: top;
    background-color: #0D1117;
}

.project-card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    min-height: 64px; /* Approx 3 lines */
    flex-grow: 1;
}

.project-includes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    min-height: 60px;
}

.project-include-chip {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
}

.project-card-cta {
    margin-top: auto;
}

.project-card-cta .arrow {
    display: inline-block;
    transition: transform var(--transition-smooth);
}

/* Shared Browser Mockup Styles */
.browser-mockup {
    background-color: #0D1117;
}

.browser-header {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    background-color: #161B22;
    border-bottom: 1px solid var(--color-border);
    border-top-left-radius: 11px;
    border-top-right-radius: 11px;
}

.browser-dots {
    display: flex;
    gap: 0.5rem;
}

.browser-dots span {
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.browser-dots span:nth-child(1) { background-color: #FF5F56; }
.browser-dots span:nth-child(2) { background-color: #FFBD2E; }
.browser-dots span:nth-child(3) { background-color: #27C93F; }

/* ==========================================================================
   7. About Section
   ========================================================================== */
.about-section {
    background-color: var(--color-bg-secondary);
}
.about-content { 
    display: grid; 
    grid-template-columns: 1fr 1.1fr; 
    gap: 5rem; 
    align-items: center; 
}
.about-text { 
    max-width: 550px; 
}
.about-text p {
    margin-bottom: 0;
}
.section-title[style*="text-align: left"]::after { 
    left: 0; 
    transform: translateX(0); 
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background-color: var(--color-card);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: background-color 250ms ease, transform 250ms ease;
}

.feature-card:hover {
    background-color: var(--color-bg-secondary);
    transform: translateY(-4px);
}

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

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

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ==========================================================================
   8. Process Section
   ========================================================================== */
.process-section {
    background-color: var(--color-bg);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.process-step {
    padding: 2rem;
    border-radius: var(--border-radius);
    position: relative;
    transition: background-color var(--transition-smooth), transform var(--transition-smooth);
}

.process-step:hover {
    background-color: var(--color-bg-secondary);
    transform: translateY(-6px);
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 60px;
    right: -1rem;
    width: 1px;
    height: calc(100% - 120px);
    background-color: var(--color-border);
}

.process-step-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    margin-bottom: 1.5rem;
}

.process-step-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.process-step-description {
    color: var(--color-text-secondary);
    font-size: 1rem;
    margin-bottom: 0;
}

/* ==========================================================================
   9. Pricing Section
   ========================================================================== */
.pricing-section {
    background-color: var(--color-bg-secondary);
}

.pricing-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
    text-align: center;
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-strong);
}

.pricing-label {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.pricing-amount {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0.5rem 0 1rem 0;
}

.pricing-description {
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 2.5rem;
}

.pricing-features {
    list-style: none;
    text-align: left;
    display: inline-block;
    margin-bottom: 2.5rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-secondary);
}

.pricing-features .check-icon {
    color: var(--color-accent-primary);
    font-weight: 700;
}

.pricing-card .btn-primary {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.pricing-note {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}


/* ==========================================================================
   10. Contact Section
   ========================================================================== */
.contact-section { 
    text-align: center; 
}

.contact-container {
    max-width: 650px;
}

.contact-subheading { 
    max-width: 550px; 
    margin: 0 auto 3rem; 
    font-size: 1.1rem; 
}

.contact-button { 
    font-size: 1.1rem; 
    padding: 1rem 2rem; 
    margin-bottom: 1.5rem; 
}

.contact-divider {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.contact-email-link {
    color: var(--color-text-muted);
    position: relative;
    padding-bottom: 4px;
}

.contact-email-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-primary);
    transition: width var(--transition-smooth), left var(--transition-smooth);
}

.contact-email-link:hover {
    color: var(--color-accent-primary);
}

.contact-email-link:hover::after {
    width: 100%;
    left: 0;
}


/* ==========================================================================
   11. Footer
   ========================================================================== */
.main-footer-container { 
    padding: 3rem 0; 
    text-align: center; 
    border-top: 1px solid var(--color-border); 
}
.main-footer-container p { 
    margin: 0; 
    color: var(--color-text-secondary); 
    font-size: 0.9rem; 
}

/* ==========================================================================
   12. Animations & Effects
   ========================================================================== */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   13. Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; gap: 4rem; }
    .hero-content { text-align: center; }
    .hero-headline { font-size: 3.2rem; }
    .hero-subheading { margin-left: auto; margin-right: auto; }
    .hero-cta { justify-content: center; }
    .trust-indicators { justify-content: center; }
    .hero-browser-mockup { grid-row: 1; animation-duration: 8s; }
    .project-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
    .about-content { grid-template-columns: 1fr; text-align: left; }
    .feature-grid { margin-top: 4rem; }
    .section-title[style*="text-align: left"]::after { left: 50%; transform: translateX(-50%); }
    .process-timeline { grid-template-columns: repeat(2, 1fr); }
    .process-step:nth-child(2)::after { display: none; }
}

@media (max-width: 768px) {
    html { font-size: 15px; }
    section { padding: 6rem 0; }
    .section-title { font-size: 2.5rem; }
    .hero-headline { font-size: 2.8rem; }
    .feature-grid { grid-template-columns: 1fr; }
    .process-timeline { grid-template-columns: 1fr; }
    .process-step:not(:last-child)::after {
        top: auto;
        bottom: -1rem;
        left: 50%;
        transform: translateX(-50%);
        width: calc(100% - 120px);
        height: 1px;
    }

    .nav-links { position: fixed; top: 0; right: -100%; width: 100%; height: 100vh; background-color: var(--color-bg-secondary); flex-direction: column; justify-content: center; align-items: center; transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1); }
    .nav-links.active { right: 0; }
    .nav-links li { margin: 1.5rem 0; }
    .nav-links a { font-size: 1.5rem; }
    .hamburger { display: block; }
    .hamburger.active .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.active .hamburger-line:nth-child(2) { opacity: 0; }
    .hamburger.active .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 480px) {
    .hero-headline { font-size: 2.5rem; }
    .hero-subheading { font-size: 1.1rem; }
    .hero-cta { display: flex; flex-direction: column; align-items: center; margin-bottom: 2rem; }
    .hero-cta .btn { width: 100%; max-width: 320px; margin-bottom: 1rem; margin-right: 0; }
    .trust-indicators { flex-direction: column; align-items: center; gap: 0.75rem; }
    .pricing-card { padding: 2rem; }
    .pricing-amount { font-size: 3.5rem; }
}