/* ============================================
   DISCOUNT APPLIANCE PARTS — DESIGN SYSTEM
   Industrial-clean, trustworthy, local business
   ============================================ */

:root {
    /* Brand Colors */
    --blue-600: #1a4fd0;
    --blue-700: #1541a8;
    --blue-800: #0d2d6e;
    --blue-100: #e8f0fe;
    --red-500: #d62828;
    --red-600: #b91c1c;
    --red-100: #fef2f2;

    /* Neutrals */
    --gray-50: #fafafa;
    --gray-100: #f4f4f5;
    --gray-200: #e4e4e7;
    --gray-300: #d4d4d8;
    --gray-400: #a1a1aa;
    --gray-500: #71717a;
    --gray-600: #52525b;
    --gray-700: #3f3f46;
    --gray-800: #27272a;
    --gray-900: #18181b;
    --white: #ffffff;

    /* Accents */
    --green-500: #16a34a;
    --green-100: #f0fdf4;
    --amber-500: #f59e0b;
    --amber-100: #fffbeb;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--font-body);
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* CONTAINER */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-6); }

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}
.site-header.scrolled {
    border-bottom-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.logo-discount {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--red-500);
    letter-spacing: 3px;
    text-transform: uppercase;
}
.logo-parts {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--blue-700);
    letter-spacing: 1px;
}
.nav-desktop { display: flex; gap: var(--space-6); }
.nav-desktop a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: color 0.2s;
    position: relative;
}
.nav-desktop a:hover { color: var(--blue-600); }
.nav-desktop a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue-600);
    transition: width 0.3s;
}
.nav-desktop a:hover::after { width: 100%; }

.header-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--blue-600);
    color: var(--white);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s;
}
.header-cta:hover { background: var(--blue-700); }
.header-cta svg { flex-shrink: 0; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: all 0.3s;
}
.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); }

.nav-mobile {
    display: none;
    flex-direction: column;
    padding: 0 var(--space-6) var(--space-6);
    gap: var(--space-1);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
    padding: var(--space-3) 0;
    font-weight: 500;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}
.mobile-call-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--blue-600);
    color: var(--white) !important;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-weight: 600;
    margin-top: var(--space-3);
    border-bottom: none !important;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: calc(72px + var(--space-16)) 0 var(--space-16);
    background: linear-gradient(135deg, var(--blue-100) 0%, var(--white) 50%, var(--gray-50) 100%);
    overflow: hidden;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}
.hero-badge {
    display: inline-block;
    background: var(--blue-600);
    color: var(--white);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-5);
}
.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: var(--space-5);
}
.hero-sub {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 520px;
    margin-bottom: var(--space-8);
}
.hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: var(--blue-600);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(26,79,208,0.3);
}
.btn-primary:hover {
    background: var(--blue-700);
    box-shadow: 0 4px 16px rgba(26,79,208,0.4);
    transform: translateY(-1px);
}
.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 1.5px solid var(--gray-300);
}
.btn-secondary:hover {
    border-color: var(--blue-600);
    color: var(--blue-600);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}
.stat { text-align: center; }
.stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--blue-700);
}
.stat-label { font-size: 13px; color: var(--gray-500); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: var(--gray-300); }

.hero-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}
.hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header { text-align: center; margin-bottom: var(--space-12); }
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--blue-600);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-3);
}
.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}
.section-header p {
    font-size: 17px;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   SERVICES (WHAT WE OFFER)
   ============================================ */
.services {
    padding: var(--space-20) 0;
    background: var(--white);
}
.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
}
.service-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all 0.3s ease;
}
.service-card:hover {
    border-color: var(--blue-600);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.service-image {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-5);
    background: linear-gradient(135deg, var(--blue-100) 0%, var(--gray-100) 100%);
}
.service-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.service-card:hover .service-image img {
    transform: scale(1.05);
}
.service-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--gray-900);
}
.service-card p {
    color: var(--gray-600);
    margin-bottom: var(--space-5);
    line-height: 1.7;
}
.service-list {
    list-style: none;
    display: grid;
    gap: var(--space-2);
}
.service-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
}
.service-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--blue-600);
    flex-shrink: 0;
}

/* ============================================
   PARTS REQUEST FORM
   ============================================ */
.parts-form {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-700) 50%, var(--blue-600) 100%);
    color: var(--white);
}
.parts-form-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: var(--space-12);
    align-items: start;
}
.form-info .section-tag {
    color: rgba(255,255,255,0.7);
}
.form-info h2 {
    font-family: var(--font-display);
    font-size: clamp(28px, 3.5vw, 38px);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-4);
}
.form-info > p {
    color: rgba(255,255,255,0.8);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: var(--space-6);
}
.form-benefits {
    display: grid;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}
.form-benefit {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 15px;
    font-weight: 500;
}
.form-benefit svg { color: #4ade80; flex-shrink: 0; }

.form-tip {
    display: flex;
    gap: var(--space-3);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-md);
    padding: var(--space-4);
}
.form-tip svg { flex-shrink: 0; color: var(--amber-500); margin-top: 2px; }
.form-tip p { font-size: 13px; line-height: 1.6; color: rgba(255,255,255,0.85); }
.form-tip strong { color: var(--white); }

.form-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}
.form-group {
    margin-bottom: var(--space-4);
}
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-1);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--gray-800);
    background: var(--white);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(26,79,208,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}
.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}
.form-group textarea {
    resize: vertical;
    min-height: 80px;
}
.btn-full {
    width: 100%;
    justify-content: center;
    padding: var(--space-4);
    font-size: 16px;
}
.form-disclaimer {
    text-align: center;
    font-size: 12px;
    color: var(--gray-400);
    margin-top: var(--space-3);
}
.form-success {
    text-align: center;
    padding: var(--space-10) var(--space-6);
}
.form-success svg {
    color: var(--green-500);
    margin-bottom: var(--space-4);
}
.form-success h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}
.form-success p {
    color: var(--gray-600);
    font-size: 15px;
}

/* ============================================
   SHOWCASE (USED APPLIANCES)
   ============================================ */
.showcase {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}
.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}
.showcase-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.showcase-image img {
    width: 100%;
    height: 380px;
    object-fit: cover;
}
.showcase-text .section-tag { display: block; text-align: left; }
.showcase-text h2 {
    font-family: var(--font-display);
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-5);
}
.showcase-text p {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.7;
}
.showcase-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    margin: var(--space-6) 0;
}
.feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
}
.feature svg { color: var(--green-500); flex-shrink: 0; }

/* ============================================
   BRANDS
   ============================================ */
.brands {
    padding: var(--space-20) 0;
    background: var(--white);
}
.brand-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
    margin-bottom: var(--space-6);
}
.brand-chip {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    transition: all 0.2s;
}
.brand-chip:hover {
    background: var(--blue-100);
    border-color: var(--blue-600);
    color: var(--blue-600);
}
.brand-note {
    text-align: center;
    color: var(--gray-500);
    font-size: 14px;
}

/* ============================================
   CATEGORIES
   ============================================ */
.categories {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}
.cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}
.cat-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    text-align: center;
    transition: all 0.3s;
}
.cat-card:hover {
    border-color: var(--blue-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.cat-card svg {
    color: var(--blue-600);
    margin-bottom: var(--space-3);
}
.cat-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--space-1);
    color: var(--gray-900);
}
.cat-card p {
    font-size: 13px;
    color: var(--gray-500);
}

/* ============================================
   REVIEWS
   ============================================ */
.reviews {
    padding: var(--space-20) 0;
    background: var(--white);
}
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}
.review-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}
.review-stars {
    color: var(--amber-500);
    font-size: 20px;
    margin-bottom: var(--space-3);
    letter-spacing: 2px;
}
.review-card p {
    color: var(--gray-700);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: var(--space-4);
    font-style: italic;
}
.review-author {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
}

/* ============================================
   WHY LOCAL (COMPARISON)
   ============================================ */
.why-local {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    max-width: 800px;
    margin: 0 auto;
}
.compare-card {
    border-radius: var(--radius-lg);
    padding: var(--space-8);
}
.compare-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--space-5);
}
.compare-card ul { list-style: none; display: grid; gap: var(--space-3); }
.compare-card li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: 14px;
    line-height: 1.5;
}
.compare-them {
    background: var(--red-100);
    border: 1px solid #fecaca;
}
.compare-them h3 { color: var(--red-600); }
.compare-them .con::before {
    content: '✕';
    color: var(--red-500);
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}
.compare-us {
    background: var(--green-100);
    border: 1px solid #bbf7d0;
}
.compare-us h3 { color: var(--green-500); }
.compare-us .pro::before {
    content: '✓';
    color: var(--green-500);
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ============================================
   FAQ
   ============================================ */
.faq {
    padding: var(--space-20) 0;
    background: var(--white);
}
.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: grid;
    gap: var(--space-3);
}
.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.2s;
}
.faq-item[open] { border-color: var(--blue-600); }
.faq-item summary {
    padding: var(--space-4) var(--space-5);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 20px;
    color: var(--gray-400);
    transition: transform 0.2s;
}
.faq-item[open] summary::after {
    content: '-';
    color: var(--blue-600);
}
.faq-item p {
    padding: 0 var(--space-5) var(--space-5);
    color: var(--gray-600);
    line-height: 1.7;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-12);
    align-items: start;
}
.contact-info .section-tag { display: block; text-align: left; }
.contact-info h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-8);
}
.contact-details { display: grid; gap: var(--space-6); }
.contact-item {
    display: flex;
    gap: var(--space-4);
}
.contact-item svg {
    flex-shrink: 0;
    color: var(--blue-600);
    margin-top: 2px;
}
.contact-item strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
}
.contact-item p {
    color: var(--gray-600);
    font-size: 14px;
    line-height: 1.6;
}
.contact-item a {
    color: var(--blue-600);
    font-weight: 600;
}
.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding-top: var(--space-16);
}
.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--gray-700);
}
.footer-brand .logo-discount { color: var(--red-500); }
.footer-brand .logo-parts { color: var(--white); }
.footer-tagline {
    margin-top: var(--space-3);
    font-size: 14px;
    line-height: 1.6;
    max-width: 300px;
}
.footer-links h4,
.footer-service-area h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-links { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-links a {
    font-size: 14px;
    color: var(--gray-400);
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }
.footer-service-area p {
    font-size: 13px;
    line-height: 1.7;
}
.footer-bottom {
    padding: var(--space-5) 0;
}
.footer-bottom p {
    font-size: 13px;
    text-align: center;
    color: var(--gray-500);
}

/* ============================================
   STICKY MOBILE CTA
   ============================================ */
.sticky-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    padding: var(--space-3);
    gap: var(--space-2);
    box-shadow: 0 -4px 16px rgba(0,0,0,0.1);
}
.sticky-call, .sticky-directions {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    flex: 1;
}
.sticky-call {
    background: var(--blue-600);
    color: var(--white);
}
.sticky-directions {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.animate-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.service-card:nth-child(2) { transition-delay: 0.1s; }
.cat-card:nth-child(2) { transition-delay: 0.1s; }
.cat-card:nth-child(3) { transition-delay: 0.2s; }
.cat-card:nth-child(4) { transition-delay: 0.15s; }
.cat-card:nth-child(5) { transition-delay: 0.2s; }
.cat-card:nth-child(6) { transition-delay: 0.25s; }
.review-card:nth-child(2) { transition-delay: 0.1s; }
.review-card:nth-child(3) { transition-delay: 0.2s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-sub { margin: 0 auto var(--space-8); }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-image { max-width: 600px; margin: 0 auto; }
    .showcase-grid { grid-template-columns: 1fr; }
    .showcase-image { order: -1; }
    .showcase-text .section-tag { text-align: center; }
    .showcase-text h2 { text-align: center; }
    .showcase-text { text-align: center; }
    .showcase-features { justify-items: center; }
    .showcase-text .btn { display: inline-flex; }
    .parts-form-grid { grid-template-columns: 1fr; }
    .form-info { text-align: center; }
    .form-benefits { max-width: 400px; margin: 0 auto var(--space-8); text-align: left; }
    .contact-grid { grid-template-columns: 1fr; }
    .contact-info .section-tag { text-align: center; }
    .contact-info h2 { text-align: center; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-desktop, .header-cta { display: none; }
    .nav-toggle { display: flex; }
    .hero { padding-top: calc(72px + var(--space-10)); padding-bottom: var(--space-10); }
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 16px; }
    .services-grid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: 1fr 1fr; }
    .reviews-grid { grid-template-columns: 1fr; }
    .comparison-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: var(--space-8); }
    .sticky-cta { display: flex; }
    body { padding-bottom: 70px; }
    .showcase-features { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .form-card { padding: var(--space-5); }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .hero-stats { flex-direction: column; gap: var(--space-4); }
    .stat-divider { width: 40px; height: 1px; }
    .cat-grid { grid-template-columns: 1fr; }
}