/* ===================================================================
   Sharp Brake & Clutch — Main Theme Stylesheet
   =================================================================== */

/* -------------------------------------------------------------------
   1. CSS Variables
   ------------------------------------------------------------------- */
:root {
    --color-yellow:     #FFF23B;
    --color-dark:       #1A1A1A;
    --color-black:      #000000;
    --color-grey:       #2D2D2D;
    --color-light-grey: #F5F5F5;
    --color-mid-grey:   #6B7280;
    --color-white:      #FFFFFF;
    --color-border:     #E5E7EB;
    --radius:           0.5rem;
    --container-max:    1400px;
    --container-pad:    2rem;
    --section-pad:      5rem;
    --transition:       all 0.3s ease-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
    font-weight: 400;
    color: var(--color-dark);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
}

/* -------------------------------------------------------------------
   3. Typography
   ------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', system-ui, sans-serif;
    font-weight: 900;
    line-height: 1.1;
    color: var(--color-dark);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.125rem; font-weight: 600; }

p {
    font-size: 1rem;
    color: var(--color-mid-grey);
    line-height: 1.75;
}

/* -------------------------------------------------------------------
   4. Layout
   ------------------------------------------------------------------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

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

.bg-white      { background-color: var(--color-white); }
.bg-dark       { background-color: var(--color-dark); }
.bg-light-grey { background-color: var(--color-light-grey); }
.bg-yellow     { background-color: var(--color-yellow); }

/* -------------------------------------------------------------------
   5. Buttons
   ------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius);
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    line-height: 1;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-yellow {
    background-color: var(--color-yellow);
    color: var(--color-dark);
    border: 2px solid var(--color-yellow);
}
.btn-yellow:hover {
    filter: brightness(1.05);
    color: var(--color-dark);
}

.btn-dark {
    background-color: var(--color-dark);
    color: var(--color-white);
    border: 2px solid var(--color-dark);
}
.btn-dark:hover {
    background-color: var(--color-grey);
    border-color: var(--color-grey);
    color: var(--color-white);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}
.btn-outline-white:hover {
    background-color: var(--color-white);
    color: var(--color-dark);
}

.btn-outline-dark {
    background-color: transparent;
    color: var(--color-dark);
    border: 2px solid var(--color-dark);
}
.btn-outline-dark:hover {
    background-color: var(--color-dark);
    color: var(--color-white);
}

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* -------------------------------------------------------------------
   6. Utilities
   ------------------------------------------------------------------- */
.hover-lift {
    transition: var(--transition);
}
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.15);
}

/* Scroll reveal — initial hidden state */
.reveal {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.text-yellow    { color: var(--color-yellow); }
.text-dark      { color: var(--color-dark); }
.text-mid-grey  { color: var(--color-mid-grey); }
.text-white     { color: var(--color-white); }
.text-center    { text-align: center; }

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

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

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

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.section-header h2 {
    margin-top: 0.5rem;
}
.section-header p {
    max-width: 40rem;
    margin: 1rem auto 0;
}

/* -------------------------------------------------------------------
   7. Navbar
   ------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
    background: var(--color-white);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
    padding: 0 2rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.navbar-logo img {
    height: 3rem;
    width: auto;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.navbar-nav a {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.9375rem;
    letter-spacing: 0.05em;
    color: var(--color-mid-grey);
    padding-bottom: 2px;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}
.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--color-dark);
    border-bottom-color: var(--color-yellow);
}

.navbar-ctas {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Mobile toggle */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-dark);
    font-size: 1.75rem;
    cursor: pointer;
    padding: 0.25rem;
}

/* Mobile nav drawer */
.navbar-mobile {
    display: none;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
.navbar-mobile.open {
    display: flex;
}
.navbar-mobile a {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: 0.05em;
    color: var(--color-mid-grey);
    padding: 0.5rem 0;
    transition: var(--transition);
}
.navbar-mobile a:hover,
.navbar-mobile a.active {
    color: var(--color-dark);
}
.navbar-mobile .navbar-mobile-ctas {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}
.navbar-mobile .btn {
    text-align: center;
    justify-content: center;
    width: 100%;
}

/* -------------------------------------------------------------------
   8. Hero Section
   ------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 5rem; /* offset fixed nav */
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(26, 26, 26, 0.75);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 48rem;
    padding: 2rem 0;
}

.hero-content h1 {
    color: var(--color-white);
    font-size: clamp(2.75rem, 6vw, 4.5rem);
    line-height: 0.95;
    margin-bottom: 1.5rem;
}

.hero-content p {
    color: #D1D5DB;
    font-size: 1.125rem;
    max-width: 40rem;
    margin-bottom: 2rem;
    line-height: 1.75;
}

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

.hero-bullets {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.hero-bullets li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #D1D5DB;
    font-size: 1rem;
}
.hero-bullets li::before {
    content: '';
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--color-yellow);
    border-radius: 50%;
    flex-shrink: 0;
}

/* -------------------------------------------------------------------
   9. Trust Bar
   ------------------------------------------------------------------- */
.trust-bar {
    background-color: var(--color-dark);
    padding: 1rem 0;
    overflow: hidden;
}

.trust-bar-track {
    display: flex;
    animation: scroll-left 20s linear infinite;
    white-space: nowrap;
}

.trust-bar-item {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 2rem;
    color: var(--color-white);
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.trust-bar-dot {
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--color-yellow);
    border-radius: 50%;
    flex-shrink: 0;
}

@keyframes scroll-left {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* -------------------------------------------------------------------
   10. Service Cards
   ------------------------------------------------------------------- */
.service-card {
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    display: block;
    color: inherit;
    text-decoration: none;
}

.service-card-icon {
    width: 4rem;
    height: 4rem;
    background-color: rgba(255, 242, 59, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: var(--transition);
    font-size: 1.75rem;
    color: var(--color-yellow);
}
.service-card:hover .service-card-icon {
    background-color: rgba(255, 242, 59, 0.2);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--color-dark);
}

.service-card p {
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    margin: 0;
}

/* -------------------------------------------------------------------
   11. Two-Column Content Sections
   ------------------------------------------------------------------- */
.content-img-wrap {
    overflow: hidden;
    border-radius: 0.75rem;
}
.content-img-wrap img {
    width: 100%;
    height: 24rem;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.content-img-wrap:hover img {
    transform: scale(1.05);
}

.content-block h2 {
    margin-bottom: 1.5rem;
}
.content-block p {
    line-height: 1.75;
    margin-bottom: 1.5rem;
}

/* -------------------------------------------------------------------
   12. Why Choose Section
   ------------------------------------------------------------------- */
.why-choose-section {
    background-color: var(--color-dark);
    padding: var(--section-pad) 0;
}
.why-choose-section .section-header h2 {
    color: var(--color-white);
}
.why-choose-section .section-header p {
    color: #9CA3AF;
}

.why-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 1.5rem;
}
.why-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.3);
}

.why-card-icon {
    width: 3rem;
    height: 3rem;
    background-color: var(--color-yellow);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--color-dark);
}

.why-card h3 {
    color: var(--color-white);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.why-card p {
    color: #9CA3AF;
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.6;
}

/* Why Choose (light version — About page) */
.why-card-light {
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.why-card-light .accent-bar {
    height: 4px;
    width: 3rem;
    background-color: var(--color-yellow);
    border-radius: 2px;
    margin-bottom: 1rem;
    transition: width 0.5s ease;
}
.why-card-light:hover .accent-bar {
    width: 100%;
}

.why-card-light .why-card-icon {
    background-color: rgba(255, 242, 59, 0.1);
    color: var(--color-yellow);
}

.why-card-light h3 {
    color: var(--color-dark);
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}
.why-card-light p {
    color: var(--color-mid-grey);
    font-size: 0.875rem;
    margin: 0;
}

/* -------------------------------------------------------------------
   13. CTA Banner
   ------------------------------------------------------------------- */
.cta-banner {
    background-color: var(--color-yellow);
    padding: 3rem 0;
    text-align: center;
}
.cta-banner h3 {
    color: var(--color-dark);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    margin-bottom: 0.5rem;
}
.cta-banner p {
    color: rgba(26, 26, 26, 0.7);
    margin-bottom: 1.5rem;
    max-width: 30rem;
    margin-left: auto;
    margin-right: auto;
}
.cta-banner-btns {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

/* -------------------------------------------------------------------
   14. Footer
   ------------------------------------------------------------------- */
.site-footer {
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
    padding: 4rem 0;
}

.footer-logo img {
    height: 3rem;
    width: auto;
    margin-bottom: 1rem;
}
.footer-logo p {
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer-col h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.08em;
    color: var(--color-dark);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-links a {
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--color-yellow);
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    margin-bottom: 0.75rem;
    transition: var(--transition);
}
.footer-contact-item a {
    color: var(--color-mid-grey);
}
.footer-contact-item a:hover {
    color: var(--color-yellow);
}
.footer-contact-item i {
    color: var(--color-yellow);
    width: 1rem;
    flex-shrink: 0;
}

.footer-hours-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    margin-bottom: 0.5rem;
}
.footer-hours-item i {
    color: var(--color-yellow);
    width: 1rem;
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 2rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-mid-grey);
}

/* -------------------------------------------------------------------
   15. Pillar Cards (About page)
   ------------------------------------------------------------------- */
.pillar-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 2rem;
    text-align: center;
}

.pillar-icon {
    width: 4rem;
    height: 4rem;
    background-color: rgba(255, 242, 59, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.75rem;
    color: var(--color-yellow);
}

.pillar-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}
.pillar-card p {
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    margin: 0;
}

/* -------------------------------------------------------------------
   16. Services Page — Tabs
   ------------------------------------------------------------------- */
.services-tabs {
    padding: var(--section-pad) 0;
}

.tab-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 0.5rem;
    margin-bottom: 2rem;
}

.tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border-radius: var(--radius);
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--color-dark);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}
.tab-btn:hover {
    background-color: rgba(255, 242, 59, 0.2);
}
.tab-btn.active {
    background-color: var(--color-yellow);
    color: var(--color-dark);
}
.tab-btn i {
    font-size: 1rem;
}
.tab-btn span {
    display: none;
}

.tab-panel {
    display: none;
}
.tab-panel.active {
    display: block;
}

.tab-panel h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 1rem;
    color: var(--color-dark);
}
.tab-panel > p {
    color: var(--color-mid-grey);
    margin-bottom: 1.5rem;
    line-height: 1.75;
}
.tab-panel h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-dark);
}

/* Tab — two-column layout */
.tab-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.tab-img-wrap {
    overflow: hidden;
    border-radius: 0.75rem;
}
.tab-img-wrap img {
    width: 100%;
    height: 18rem;
    object-fit: cover;
}

/* Bullet list */
.bullet-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.bullet-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: var(--color-mid-grey);
    font-size: 1rem;
    line-height: 1.5;
}
.bullet-list li i {
    color: var(--color-yellow);
    margin-top: 0.2rem;
    flex-shrink: 0;
    font-size: 1rem;
}

.bullet-list-columns {
    columns: 2;
    column-gap: 2rem;
}
.bullet-list-columns li {
    break-inside: avoid;
    margin-bottom: 0.5rem;
}

/* Component grid */
.component-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.component-chip {
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 0.75rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-dark);
    transition: var(--transition);
}
.component-chip:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Parts why-choose mini-grid */
.parts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}
.parts-card {
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1rem;
    text-align: center;
    transition: var(--transition);
}
.parts-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -8px rgba(0,0,0,0.15);
}
.parts-card i {
    font-size: 1.5rem;
    color: var(--color-yellow);
    margin-bottom: 0.5rem;
    display: block;
    transition: transform 0.3s ease;
}
.parts-card:hover i {
    transform: scale(1.15);
}
.parts-card span {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.8125rem;
    color: var(--color-dark);
}

/* -------------------------------------------------------------------
   17. Accordion
   ------------------------------------------------------------------- */
.accordion {
    border-bottom: 1px solid var(--color-border);
}

.accordion-item {
    border-top: 1px solid var(--color-border);
}

.accordion-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-dark);
    text-align: left;
    transition: color 0.2s ease;
}
.accordion-trigger:hover {
    color: var(--color-yellow);
}
.accordion-trigger .accordion-icon {
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    transition: transform 0.2s ease;
    flex-shrink: 0;
}
.accordion-trigger.open .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    display: none;
    padding: 0 0 1.25rem;
}
.accordion-content.open {
    display: block;
}

/* -------------------------------------------------------------------
   18. Contact Page
   ------------------------------------------------------------------- */
.contact-info-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: var(--transition);
}
.contact-info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -8px rgba(0,0,0,0.15);
}

.contact-icon {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-yellow);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-dark);
    font-size: 1.125rem;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--color-mid-grey);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.125rem;
}
.contact-value {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--color-dark);
}
.contact-value a {
    color: var(--color-dark);
    text-decoration: none;
    transition: color 0.2s ease;
}
.contact-value a:hover {
    color: var(--color-yellow);
}

/* Contact form */
.contact-form-wrap {
    background-color: var(--color-light-grey);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 2rem;
}
.contact-form-wrap h2 {
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-mid-grey);
    margin-bottom: 0.25rem;
    font-family: 'Montserrat', sans-serif;
}
.form-control {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border: 1px solid #D1D5DB;
    border-radius: var(--radius);
    background-color: var(--color-white);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.875rem;
    color: var(--color-dark);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}
.form-control::placeholder {
    color: #9CA3AF;
}
.form-control:focus {
    border-color: var(--color-yellow);
    box-shadow: 0 0 0 3px rgba(255, 242, 59, 0.25);
}
textarea.form-control {
    resize: vertical;
    min-height: 6rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.75rem;
}

.form-submit {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--color-yellow);
    color: var(--color-dark);
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: filter 0.2s ease;
    margin-top: 0.5rem;
}
.form-submit:hover {
    filter: brightness(1.05);
}

.form-message {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
    font-weight: 600;
    display: none;
}
.form-message.success {
    background-color: #ECFDF5;
    border: 1px solid #6EE7B7;
    color: #065F46;
    display: block;
}
.form-message.error {
    background-color: #FEF2F2;
    border: 1px solid #FCA5A5;
    color: #991B1B;
    display: block;
}

/* -------------------------------------------------------------------
   19. 404 Page
   ------------------------------------------------------------------- */
.page-404 {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
}
.page-404-number {
    font-size: 8rem;
    font-weight: 900;
    color: var(--color-yellow);
    line-height: 1;
    margin-bottom: 1rem;
}
.page-404 h1 {
    font-size: 2rem;
    color: var(--color-dark);
    margin-bottom: 1rem;
}
.page-404 p {
    max-width: 30rem;
    margin: 0 auto 2rem;
}

/* -------------------------------------------------------------------
   20. Responsive Breakpoints
   ------------------------------------------------------------------- */

/* Large: 1024px and up — desktop default styles are already set */

/* Medium: 768px–1023px */
@media (max-width: 1023px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .tab-btn span {
        display: inline; /* show labels on tablet */
    }
}

/* Small: 640px–767px */
@media (max-width: 767px) {
    :root {
        --container-pad: 1.25rem;
        --section-pad: 3.5rem;
    }

    /* Navbar */
    .navbar-nav,
    .navbar-ctas {
        display: none;
    }
    .navbar-toggle {
        display: block;
    }

    /* Grid */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .grid-2 .order-swap { order: -1; }

    /* Service cards */
    .service-cards-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        padding: 2.5rem 0;
    }

    /* Tab labels hidden on mobile */
    .tab-btn span {
        display: none;
    }

    /* Tab grid */
    .tab-grid {
        grid-template-columns: 1fr;
    }

    /* Component grid */
    .component-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Parts grid */
    .parts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Bullet columns */
    .bullet-list-columns {
        columns: 1;
    }

    /* Form row */
    .form-row {
        grid-template-columns: 1fr;
    }

    /* Hero */
    .hero-btns {
        flex-direction: column;
        align-items: flex-start;
    }
    .hero-btns .btn {
        width: 100%;
        justify-content: center;
    }

    /* CTA */
    .cta-banner-btns {
        flex-direction: column;
        align-items: center;
    }
    .cta-banner-btns .btn {
        width: 100%;
        max-width: 20rem;
        justify-content: center;
    }
}

/* Extra small: below 400px */
@media (max-width: 399px) {
    .service-cards-grid {
        grid-template-columns: 1fr;
    }
}

/* Medium–large tab label visibility */
@media (min-width: 640px) {
    .tab-btn span {
        display: inline;
    }
}