/*
   Modern Sheet Metal Factory Website Styles
   Theme: Professional Blue
*/

:root {
    --primary-blue: #0056b3;
    --primary-dark: #004494;
    --accent-blue: #f0f7ff;
    --text-dark: #2c3e50;
    --text-light: #596b7e;
    --bg-light: transparent;
    --bg-dark: rgba(244, 246, 249, 0.5);
    --white: #ffffff;
    --border-color: #e2e8f0;
    --bg-gradient: linear-gradient(135deg, #f8fafd 0%, #eff4f9 100%);

    --container-width: 1200px;
    --header-height: 80px;

    --transition: all 0.3s ease;
    --grain-opacity: 0.15;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 16px;
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
    background: var(--bg-gradient);
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

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

ul {
    list-style: none;
}

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

/* Utility Classes */
.bg-dark {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

.bg-light {
    background-color: var(--white) !important;
}

.text-white {
    color: var(--text-dark) !important;
}

.text-white-50 {
    color: var(--text-light) !important;
}

.text-left {
    text-align: left !important;
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 74, 173, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 74, 173, 0.4);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    height: var(--header-height);
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo img {
    height: 60px;
    width: auto;
}

.company-name {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-dark);
    white-space: nowrap;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list li a {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 1rem;
    position: relative;
    padding: 5px 0;
}

.nav-list li a:not(.btn-contact)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-blue);
    transition: var(--transition);
}

.nav-list li a:not(.btn-contact):hover::after {
    width: 100%;
}

.nav-list li a:not(.btn-contact):hover {
    color: var(--primary-blue);
}

.btn-contact {
    padding: 8px 20px;
    background-color: var(--primary-blue);
    color: var(--white) !important;
    border-radius: 4px;
}

.btn-contact:hover {
    background-color: var(--primary-dark);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0);
    z-index: 1000;
    visibility: hidden;
    pointer-events: none;
    transition: background-color 0.4s ease, visibility 0.4s;
    overflow: hidden;
}

.mobile-nav-overlay.active {
    background-color: rgba(0, 0, 0, 0.5);
    visibility: visible;
    pointer-events: auto;
}

.mobile-nav-list {
    position: absolute;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 300px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    transition: right 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    list-style: none;
}

.mobile-nav-overlay.active .mobile-nav-list {
    right: 0;
}

.mobile-nav-list li {
    margin: 15px 0;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.4s ease;
}

.mobile-nav-overlay.active .mobile-nav-list li {
    opacity: 1;
    transform: translateX(0);
}

.mobile-nav-overlay.active li:nth-child(1) { transition-delay: 0.1s; }
.mobile-nav-overlay.active li:nth-child(2) { transition-delay: 0.2s; }
.mobile-nav-overlay.active li:nth-child(3) { transition-delay: 0.3s; }
.mobile-nav-overlay.active li:nth-child(4) { transition-delay: 0.4s; }

.mobile-nav-list a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 86, 179, 0.1);
}

.mobile-nav-list a:hover {
    color: var(--primary-blue);
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
    background-color: var(--text-dark);
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate linear;
}

.hero-bg-image::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.12;
    pointer-events: none;
    z-index: 2;
    mix-blend-mode: overlay;
}

@keyframes slowZoom {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 86, 179, 0.7) 0%, rgba(0, 0, 0, 0.6) 100%);
    z-index: 2;
}

.hero::before {
    display: none;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    color: var(--white);
    letter-spacing: 2px;
}

.hero-content p {
    font-size: 1.35rem;
    margin-bottom: 40px;
    color: var(--white);
    opacity: 0.9;
    font-weight: 500;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    letter-spacing: 1px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== SECTIONS COMMON ===== */
.section {
    padding: 80px 0 60px 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: inherit;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--primary-blue);
    margin: 15px auto;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== CAPABILITIES GRID ===== */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.capability-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 74, 173, 0.08);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-bottom: 4px solid transparent;
}

.capability-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-bottom-color: var(--primary-blue);
}

.capability-card .icon {
    width: 60px;
    height: 60px;
    background-color: var(--accent-blue);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 20px;
    transition: var(--transition);
    font-size: 1.5rem;
}

.capability-card:hover .icon {
    background-color: var(--primary-blue);
    color: var(--white);
}

.capability-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.capability-card p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.8;
}

/* ===== PORTFOLIO GRID ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    background: #000;
}

.portfolio-item img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
    filter: saturate(0.9) contrast(1.05) brightness(0.95);
}

.portfolio-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: var(--grain-opacity);
    pointer-events: none;
    z-index: 1;
    mix-blend-mode: overlay;
}

.portfolio-item:hover img {
    transform: scale(1.1);
    opacity: 0.7;
}

.portfolio-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: var(--white);
    transform: translateY(100%);
    transition: var(--transition);
    z-index: 2;
}

.portfolio-item:hover .portfolio-info {
    transform: translateY(0);
}

.portfolio-info h3 {
    font-size: 1.25rem;
    margin-bottom: 5px;
    color: var(--white);
}

.portfolio-info p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ===== ABOUT SECTION ===== */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.9;
}

.about-text .section-title::after {
    margin: 15px 0;
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 25px;
    letter-spacing: 0.5px;
    display: block;
}

.stats {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: 'Oswald', sans-serif;
}

.stat-label {
    color: var(--text-dark);
}

.about-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.about-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.about-img-wrapper img {
    display: block;
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.about-img-wrapper:hover img {
    transform: scale(1.05);
}

.img-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ===== QUALITY & CERTIFICATION ===== */
.quality-layout {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.certification-points {
    margin-top: 30px;
}

.cert-point {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.cert-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 700;
    font-size: 0.8rem;
    font-family: 'Oswald', sans-serif;
}

.cert-text h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
    color: var(--text-dark);
}

.cert-text p {
    font-size: 0.95rem;
    color: var(--text-light);
}

.quality-image {
    width: 100%;
}

.certificate-container {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.clean-cert-img {
    width: 45%;
    max-width: 400px;
    height: auto;
    object-fit: contain;
    border-radius: 2px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    border: 1px solid #e0e0e0;
    background-color: #fff;
}

.clean-cert-img:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    z-index: 2;
}

/* ===== SERVICE PROCESS ===== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
    position: relative;
}

.process-step {
    text-align: center;
    position: relative;
    padding: 20px;
}

.process-grid::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: #e1e4e8;
    z-index: 0;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--white);
    color: var(--primary-blue);
    border: 3px solid var(--primary-blue);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    position: relative;
    z-index: 1;
    font-family: 'Oswald', sans-serif;
    box-shadow: 0 0 0 5px var(--white);
}

.process-step h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.process-step p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===== CONTACT SECTION ===== */
#contact {
    margin-top: 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 0;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    color: var(--text-dark);
    max-width: 1000px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
}

.contact-details {
    padding: 35px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e6f0fa 100%);
}

.contact-item {
    margin-bottom: 20px;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item h4 {
    font-size: 0.95rem;
    margin-bottom: 5px;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.contact-item p {
    color: var(--text-dark);
    font-size: 1rem;
    font-weight: 500;
}

.contact-item a {
    color: var(--text-dark);
}

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

.contact-map {
    height: 100%;
    min-height: 380px;
    position: relative;
}

/* ===== FOOTER ===== */
footer {
    background-color: var(--bg-dark);
    padding: 30px 0;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

footer p {
    color: var(--text-light);
    font-size: 0.9rem;
    letter-spacing: 1.5px;
}

/* ===== ACCESSIBILITY ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 0 0 4px 0;
    font-weight: 500;
}

.skip-link:focus {
    top: 0;
    z-index: 1000;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 86, 179, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 6px 20px rgba(0, 86, 179, 0.4);
    transform: translateY(-3px);
}

.back-to-top:focus {
    outline: 3px solid var(--accent-blue);
    outline-offset: 2px;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* ===== EQUIPMENT SECTION ===== */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    max-width: 700px;
    margin: 0 auto;
}

.equipment-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.equipment-card:hover {
    box-shadow: 0 8px 30px rgba(0, 74, 173, 0.1);
    transform: translateY(-4px);
}

.equipment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent-blue);
    color: var(--primary-blue);
}

.equipment-header h3 {
    font-size: 1.25rem;
    margin-bottom: 0;
}

.spec-list {
    list-style: none;
}

.spec-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.95rem;
}

.spec-list li:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--text-light);
    flex-shrink: 0;
}

.spec-value {
    font-weight: 600;
    color: var(--text-dark);
    text-align: right;
}

/* ===== WHY CHOOSE US ===== */
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    max-width: 1000px;
    margin: 0 auto;
}

.why-us-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 12px;
    background: var(--white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.why-us-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 74, 173, 0.1);
    border-bottom: 3px solid var(--primary-blue);
}

.why-us-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-blue);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}

.why-us-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.why-us-card p {
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== FAQ SECTION ===== */
.faq-list {
    max-width: 750px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item[open] {
    box-shadow: 0 4px 15px rgba(0, 74, 173, 0.08);
    border-color: var(--primary-blue);
}

.faq-question {
    padding: 18px 24px;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
    transition: var(--transition);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-blue);
    flex-shrink: 0;
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.faq-item[open] .faq-question::after {
    content: '−';
}

.faq-question:hover {
    color: var(--primary-blue);
}

.faq-answer {
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ===== ENHANCED FOOTER ===== */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 25px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.footer-info p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 4px;
    letter-spacing: 0;
}

.footer-company {
    font-weight: 700;
    font-size: 1rem !important;
    color: var(--text-dark) !important;
    margin-bottom: 8px !important;
}

.footer-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-light);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-light);
    letter-spacing: 1px;
}

/* ===== RESPONSIVE: TABLET (max-width: 992px) ===== */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.8rem;
    }

    .about-layout {
        grid-template-columns: 1fr;
    }

    .about-images {
        margin-top: 30px;
    }

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

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

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

    .quality-layout {
        text-align: center;
    }

    .quality-layout .section-title::after {
        margin: 15px auto;
    }

    .cert-point {
        text-align: left;
    }

    .certificate-container {
        justify-content: center;
        gap: 30px;
        margin-top: 40px;
    }

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

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

/* ===== RESPONSIVE: MOBILE (max-width: 768px) ===== */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    html {
        scroll-padding-top: 70px;
    }

    body {
        font-size: 15px;
        line-height: 1.8;
    }

    .container {
        padding: 0 20px;
    }

    /* Header */
    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .company-name {
        font-size: 1rem;
        color: var(--primary-blue);
    }

    .logo img {
        height: 40px;
    }

    /* Hero */
    .hero {
        margin-top: 60px;
        height: auto;
        min-height: 70vh;
        padding: 60px 20px;
    }

    .hero-content h1 {
        font-size: 1.75rem;
        word-break: keep-all;
        letter-spacing: 1px;
    }

    .hero-content p {
        font-size: 1rem;
        margin-bottom: 30px;
        letter-spacing: 0;
    }

    .btn {
        padding: 12px 28px;
        font-size: 0.95rem;
    }

    /* Sections */
    .section {
        padding: 50px 0 40px 0;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .section-subtitle {
        margin-bottom: 25px;
        font-size: 0.95rem;
    }

    /* Capabilities - stacked cards instead of carousel */
    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .capability-card {
        padding: 25px 20px;
    }

    .capability-card h3 {
        font-size: 1.25rem;
        margin-bottom: 10px;
    }

    .capability-card p {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    /* About */
    .about-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-text {
        text-align: left;
        width: 100%;
    }

    .about-text p {
        text-align: justify;
        font-size: 0.95rem;
        line-height: 1.8;
    }

    .about-text .section-title::after {
        margin: 15px 0;
    }

    .lead-text {
        font-size: 1.1rem;
    }

    .about-images {
        width: 100%;
        grid-template-columns: 1fr;
    }

    .about-img-wrapper img {
        height: 200px;
    }

    .stats {
        justify-content: center;
        gap: 30px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    /* Quality */
    .clean-cert-img {
        width: 100%;
        max-width: 400px;
        margin-bottom: 15px;
    }

    /* Process */
    .process-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        margin-top: 30px;
    }

    .process-step {
        padding: 10px;
    }

    .process-step h3 {
        font-size: 1.1rem;
    }

    .process-step p {
        font-size: 0.9rem;
    }

    /* Contact */
    .contact-wrapper {
        grid-template-columns: 1fr;
        width: 100%;
    }

    .contact-details {
        padding: 25px 20px;
    }

    .contact-item h4 {
        font-size: 0.85rem;
    }

    .contact-item p {
        font-size: 0.95rem;
    }

    .contact-map {
        height: 280px;
        min-height: 280px;
        width: 100%;
    }

    .contact-map iframe {
        min-height: 280px !important;
    }

    /* Equipment */
    .equipment-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .equipment-card {
        padding: 20px;
    }

    /* Why us */
    .why-us-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .why-us-card {
        padding: 25px 20px;
    }

    /* FAQ */
    .faq-question {
        padding: 15px 18px;
        font-size: 0.95rem;
    }

    .faq-answer {
        padding: 0 18px 15px;
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    /* Back to top */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 20px;
    }
}

/* ===== RESPONSIVE: SMALL MOBILE (max-width: 480px) ===== */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.4rem;
    }

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

    .about-img-wrapper img {
        height: 180px;
    }

    .stats {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .stat-item {
        align-items: center;
    }
}