/* ============================================
   WebCraft Studio - Landing Page Styles
   Light + Modern Theme
   ============================================ */

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --accent: #06B6D4;
    --text: #1E293B;
    --text-light: #64748B;
    --text-lighter: #94A3B8;
    --bg: #FFFFFF;
    --bg-alt: #F8FAFC;
    --bg-card: #FFFFFF;
    --border: #E2E8F0;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

img {
    max-width: 100%;
    display: block;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

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

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

.btn-sm {
    padding: 8px 20px;
    font-size: 0.875rem;
    border-radius: 8px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(79, 70, 229, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 80px 0;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Stats Section
   ============================================ */
.stats {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 48px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-item {
    padding: 16px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    display: inline;
}

.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 4px;
    font-weight: 500;
}

/* ============================================
   Section Common
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

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

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(6,182,212,0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.925rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   Process Section
   ============================================ */
.process {
    padding: 100px 0;
    background: var(--bg-alt);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0.2;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
    position: relative;
    z-index: 1;
}

.process-step h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    max-width: 240px;
    margin: 0 auto;
}

/* ============================================
   Portfolio Section
   ============================================ */
.portfolio {
    padding: 100px 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.portfolio-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
}

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

.portfolio-img {
    height: 240px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(30, 41, 59, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay span {
    color: white;
    font-weight: 600;
    font-size: 1rem;
    padding: 10px 24px;
    border: 2px solid white;
    border-radius: var(--radius-sm);
}

.portfolio-info {
    padding: 24px;
}

.portfolio-info h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 6px;
}

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

/* ============================================
   Quote Section
   ============================================ */
.quote-section {
    padding: 100px 0;
    background: var(--bg-alt);
}

.quote-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

/* Progress Bar */
.progress-bar {
    position: relative;
    height: 4px;
    background: var(--border);
    border-radius: 4px;
    margin-bottom: 40px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 4px;
    transition: width 0.4s ease;
    width: 25%;
}

.progress-steps {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
}

.progress-step {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-lighter);
    transition: var(--transition);
}

.progress-step.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.progress-step.completed {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Form Steps */
.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-step h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

/* Option Cards (Radio) */
.option-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.option-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.option-card {
    cursor: pointer;
}

.option-card input {
    display: none;
}

.option-content {
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.option-content span {
    font-weight: 600;
    font-size: 0.95rem;
}

.option-content small {
    color: var(--text-lighter);
    font-size: 0.8rem;
}

.option-content svg {
    color: var(--text-light);
    transition: var(--transition);
}

.option-card input:checked + .option-content {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.05);
}

.option-card input:checked + .option-content svg {
    color: var(--primary);
}

.option-content:hover {
    border-color: var(--primary-light);
}

/* Checkbox Cards */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.checkbox-card {
    cursor: pointer;
}

.checkbox-card input {
    display: none;
}

.checkbox-content {
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
}

.checkmark {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    border: 2px solid var(--border);
    flex-shrink: 0;
    transition: var(--transition);
    position: relative;
}

.checkbox-card input:checked + .checkbox-content .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-card input:checked + .checkbox-content .checkmark::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 6px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-card input:checked + .checkbox-content {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.05);
}

.checkbox-content:hover {
    border-color: var(--primary-light);
}

.checkbox-content span:last-child {
    font-weight: 500;
    font-size: 0.9rem;
}

/* Budget Section */
.budget-section, .timeline-section {
    margin-bottom: 32px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.range-wrapper {
    position: relative;
    margin-bottom: 8px;
}

input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

input[type="range"]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.range-value {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-top: 12px;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-lighter);
}

/* Estimate Box */
.estimate-box {
    background: linear-gradient(135deg, rgba(79,70,229,0.08), rgba(6,182,212,0.08));
    border: 1px solid rgba(79,70,229,0.2);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    margin-top: 16px;
}

.estimate-label {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 4px;
}

.estimate-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
}

.estimate-note {
    font-size: 0.8rem;
    color: var(--text-lighter);
    margin-top: 8px;
}

/* Form Inputs */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    transition: var(--transition);
    background: var(--bg);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Form Navigation */
.form-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 32px;
    gap: 16px;
}

.form-nav .btn {
    min-width: 140px;
}

.form-nav .btn:only-child,
.form-nav .btn:last-child {
    margin-left: auto;
}

/* Form Success */
.form-success {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    color: #10B981;
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-success p {
    color: var(--text-light);
    max-width: 400px;
    margin: 0 auto;
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials {
    padding: 100px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    display: flex;
    gap: 2px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.author-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.author-role {
    font-size: 0.8rem;
    color: var(--text-lighter);
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--bg-alt);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 32px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-item svg {
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--text-lighter);
    font-weight: 500;
    margin-bottom: 2px;
}

.contact-item a, .contact-item span {
    font-size: 0.95rem;
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.contact-form {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 36px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.contact-form .form-group {
    margin-bottom: 16px;
}

.contact-success {
    text-align: center;
    padding: 20px;
    color: #10B981;
    font-weight: 600;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--text);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.85rem;
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .process-steps::before {
        display: none;
    }

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

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
    }

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

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

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

    .quote-form-wrapper {
        padding: 28px 20px;
    }

    .option-grid, .checkbox-grid, .form-grid {
        grid-template-columns: 1fr;
    }

    .option-grid-3 {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

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