/* ===== VARIABLES ===== */
:root {
    --bg-primary: #070708;
    --bg-secondary: #0E0E0F;
    --bg-tertiary: #161618;
    --bg-card: #1A1A1C;
    --red: #A80704;
    --red-bright: #D4110E;
    --red-glow: #FF2A1F;
    --white: #FFFFFF;
    --gray-100: #FFFFFF;
    --gray-300: #E0E0E0;
    --gray-500: #C0C0C0;
    --gray-700: #4A4A4A;
    --font-display: 'Bebas Neue', 'Arial Narrow', sans-serif;
    --font-serif: 'Libre Baskerville', 'Georgia', serif;
    --font-body: 'Barlow', 'Helvetica Neue', sans-serif;
}

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

/* ===== NOISE OVERLAY ===== */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 10000;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--red); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--red-bright); }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.navbar.scrolled {
    background: rgba(7, 7, 8, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.8rem 2rem;
    border-bottom: 1px solid rgba(168, 7, 4, 0.2);
}
.nav-logo {
    display: flex;
    align-items: center;
}
.nav-logo img {
    width: 236px;
    height: 96px;
    object-fit: contain;
    transition: all 0.4s;
}
.navbar.scrolled .nav-logo img {
    width: 177px;
    height: 72px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}
.nav-links a {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-300);
    transition: color 0.3s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--red);
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.7rem 1.8rem;
    background: var(--red);
    color: var(--white);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.nav-cta:hover {
    background: var(--red-bright);
    transform: translateY(-1px);
}
.nav-cta::after {
    display: none !important;
}

/* Mobile menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
    z-index: 1001;
}
.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
    display: block;
}
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== LANGUAGE SELECTOR ===== */
.lang-selector {
    position: relative;
}
.lang-current {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: none;
    border: 1px solid var(--gray-700);
    color: var(--gray-300);
    padding: 0.35rem 0.7rem;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    transition: all 0.3s;
    border-radius: 2px;
}
.lang-current:hover {
    border-color: var(--red);
    color: var(--white);
}
.lang-flag {
    width: 20px;
    height: 14px;
    object-fit: cover;
    border-radius: 1px;
}
.lang-arrow {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    margin-left: 0.2rem;
    transition: transform 0.3s;
}
.lang-selector.open .lang-arrow {
    transform: rotate(180deg);
}
.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid rgba(168, 7, 4, 0.2);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1002;
}
.lang-selector.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.lang-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 1rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--gray-300);
    transition: all 0.2s;
}
.lang-option:hover {
    background: rgba(168, 7, 4, 0.1);
    color: var(--white);
}
.lang-option::after {
    display: none !important;
}
.lang-option.active {
    color: var(--red);
    background: rgba(168, 7, 4, 0.06);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--bg-primary);
}
.hero-bg-image {
    position: absolute;
    top: 0;
    right: 0;
    width: 55%;
    height: 100%;
    background: url('../img/hero-bg.png') center center / cover no-repeat;
    opacity: 0.35;
    z-index: 1;
    mask-image: linear-gradient(to right, transparent 0%, black 30%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 30%);
}
#particles {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
.hero-blast {
    position: absolute;
    top: 55%;
    left: 50%;
    width: 200vmax;
    height: 200vmax;
    transform: translate(-50%, -50%) scale(0);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(168, 7, 4, 0.25) 0%, rgba(168, 7, 4, 0.08) 35%, transparent 65%);
    animation: blastExpand 2.5s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
    z-index: 2;
    pointer-events: none;
}
@keyframes blastExpand {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 1; }
    60% { opacity: 0.7; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 0; }
}
.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(168, 7, 4, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168, 7, 4, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 2;
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 5;
    max-width: 1200px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
    width: 100%;
}
.hero-label {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 0.8s forwards;
}
.hero-label::before {
    content: '';
    width: 40px;
    height: 1px;
    background: var(--red);
}
.hero-title {
    font-family: var(--font-display);
    line-height: 0.9;
    margin-bottom: 0.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s 1s forwards;
}
.hero-title .line1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    color: var(--white);
    letter-spacing: 0.15em;
    display: block;
}
.hero-title .line2 {
    font-size: clamp(4.5rem, 14vw, 12rem);
    color: var(--white);
    letter-spacing: 0.02em;
    display: block;
    text-shadow: 0 0 80px rgba(168, 7, 4, 0.3);
}
.hero-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(0.95rem, 1.5vw, 1.2rem);
    color: var(--gray-300);
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 1.2s forwards;
}
.hero-desc {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--gray-300);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 1.4s forwards;
}
.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 1.6s forwards;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 1rem 2.2rem;
    background: var(--red);
    color: var(--white);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn-primary:hover { background: var(--red-bright); transform: translateY(-2px); }
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 1rem 2.2rem;
    background: transparent;
    color: var(--white);
    border: 1px solid var(--gray-700);
    cursor: pointer;
    transition: all 0.3s;
}
.btn-secondary:hover { border-color: var(--red); color: var(--red); }

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    animation: fadeUp 0.8s 2s forwards;
}
.scroll-indicator span {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-300);
}
.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--red), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ===== STATS BAR ===== */
.stats {
    position: relative;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(168, 7, 4, 0.15);
    border-bottom: 1px solid rgba(168, 7, 4, 0.15);
    overflow: hidden;
}
.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(168, 7, 4, 0.06) 0%, transparent 50%, rgba(168, 7, 4, 0.04) 100%);
    pointer-events: none;
}
.stats-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    position: relative;
}
.stat-item {
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
}
.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 25%;
    height: 50%;
    width: 1px;
    background: rgba(168, 7, 4, 0.2);
}
.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    color: var(--white);
    line-height: 1;
    margin-bottom: 0.3rem;
}
.stat-number .accent { color: var(--red); }
.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gray-300);
}

/* ===== SEISMIC DIVIDER ===== */
.seismic-divider {
    padding: 2rem 0;
    display: flex;
    justify-content: center;
    background: var(--bg-primary);
    overflow: hidden;
}
.seismic-divider svg {
    width: 100%;
    max-width: 1200px;
    height: 50px;
}
.seismic-path {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    transition: stroke-dashoffset 2s ease-out;
}
.seismic-path.animate {
    stroke-dashoffset: 0;
}

/* ===== PROBLEM / SOLUTION ===== */
.problem-solution {
    padding: 6rem 2rem;
    background: var(--bg-primary);
}
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-label {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}
.section-label::before, .section-label::after {
    content: '';
    width: 30px;
    height: 1px;
    background: var(--red);
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: 0.04em;
    color: var(--white);
}
.ps-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    position: relative;
}
.ps-grid::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--red), transparent);
}
.ps-card {
    padding: 2.5rem;
    position: relative;
}
.ps-card-label {
    font-family: var(--font-display);
    font-size: 1.6rem;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}
.ps-card.problem .ps-card-label { color: var(--white); }
.ps-card.solution .ps-card-label { color: var(--red); }
.ps-card p {
    font-weight: 300;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--gray-300);
}
.ps-card.solution {
    background: linear-gradient(135deg, rgba(168, 7, 4, 0.06) 0%, transparent 100%);
    border-left: 2px solid var(--red);
}
.ps-image {
    width: 100%;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    opacity: 0.85;
    transition: opacity 0.3s;
}
.ps-image:hover { opacity: 1; }
.ps-card.problem .ps-image {
    border: 1px solid var(--gray-700);
}
.ps-card.solution .ps-image {
    border: 1px solid rgba(168, 7, 4, 0.3);
}

/* ===== SERVICES ===== */
.services {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}
.services-bg {
    position: absolute;
    inset: 0;
    background: url('../img/openpit-mine.jpg') center center / cover no-repeat;
    opacity: 0.12;
    z-index: 0;
}
.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(168, 7, 4, 0.3), transparent);
    z-index: 1;
}
.services .section-header,
.services .services-grid {
    position: relative;
    z-index: 2;
}
.services-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.service-card {
    background: var(--bg-card);
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid rgba(255, 255, 255, 0.03);
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(168, 7, 4, 0.15);
    box-shadow: 0 20px 60px rgba(168, 7, 4, 0.08);
}
.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.5rem;
    position: relative;
}
.service-icon svg {
    width: 100%;
    height: 100%;
}
.service-number {
    font-family: var(--font-display);
    font-size: 4rem;
    color: rgba(168, 7, 4, 0.12);
    position: absolute;
    top: -0.5rem;
    right: 1rem;
    line-height: 1;
}
.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.06em;
    color: var(--white);
    margin-bottom: 1rem;
}
.service-desc {
    font-weight: 300;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--gray-300);
    margin-bottom: 1.2rem;
}
.service-result {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.85rem;
    color: var(--red);
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== WHY US ===== */
.why-us {
    padding: 6rem 2rem;
    background: var(--bg-primary);
    position: relative;
}
.why-us-images {
    max-width: 1100px;
    margin: 0 auto 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.why-us-img-wrap {
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/9;
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.why-us-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: all 0.5s;
}
.why-us-img-wrap:hover img {
    opacity: 1;
    transform: scale(1.03);
}
.why-us-img-wrap .img-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.2rem;
    background: linear-gradient(to top, rgba(7,7,8,0.9), transparent);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: var(--gray-300);
}
.why-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.why-card {
    padding: 2.5rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}
.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--red);
    transition: height 0.4s;
}
.why-card:hover::before { height: 100%; }
.why-card:hover {
    border-color: rgba(168, 7, 4, 0.1);
}
.why-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 1.2rem;
}
.why-icon svg { width: 100%; height: 100%; }
.why-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    letter-spacing: 0.06em;
    color: var(--white);
    margin-bottom: 0.8rem;
}
.why-desc {
    font-weight: 300;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--gray-300);
}

/* ===== CONTACT ===== */
.contact {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}
.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(168, 7, 4, 0.3), transparent);
}
.contact-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}
.contact-text h2 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    letter-spacing: 0.04em;
    color: var(--white);
    margin-bottom: 1rem;
}
.contact-text p {
    font-weight: 300;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--gray-300);
    margin-bottom: 2rem;
    max-width: 500px;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1rem;
    color: var(--gray-100);
    transition: color 0.3s;
}
.contact-item:hover { color: var(--red); }
.contact-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke: var(--red);
}
.contact-form {
    background: var(--bg-card);
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.03);
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
.contact-form h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.06em;
    color: var(--white);
    margin-bottom: 1.5rem;
}
.form-group {
    margin-bottom: 1.2rem;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color 0.3s;
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--red);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}
.form-group textarea {
    resize: vertical;
    min-height: 100px;
}
.form-submit {
    width: 100%;
    padding: 1rem;
    background: var(--red);
    color: var(--white);
    border: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.form-submit:hover { background: var(--red-bright); }

/* ===== FOOTER ===== */
.footer {
    padding: 2.5rem 2rem;
    background: var(--bg-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-logo {
    display: flex;
    align-items: center;
}
.footer-logo img {
    width: 236px;
    height: 96px;
    object-fit: contain;
}
.footer-copy {
    font-size: 0.8rem;
    color: var(--gray-500);
}
.footer-socials {
    display: flex;
    gap: 1rem;
}
.footer-socials a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-700);
    color: var(--gray-300);
    transition: all 0.3s;
}
.footer-socials a:hover {
    border-color: var(--red);
    color: var(--red);
}
.footer-socials a svg {
    width: 16px;
    height: 16px;
}

/* ===== WHATSAPP FAB ===== */
.whatsapp-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s;
}
.whatsapp-fab:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}
.whatsapp-fab svg {
    width: 28px;
    height: 28px;
    fill: white;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== CHINESE FONT OVERRIDES ===== */
html[lang="zh-Hans"] body {
    line-height: 1.8;
}
html[lang="zh-Hans"] p,
html[lang="zh-Hans"] .hero-desc,
html[lang="zh-Hans"] .ps-card p,
html[lang="zh-Hans"] .service-desc,
html[lang="zh-Hans"] .why-desc,
html[lang="zh-Hans"] .contact-text p {
    line-height: 1.9;
}
html[lang="zh-Hans"] .section-title,
html[lang="zh-Hans"] .hero-title .line1,
html[lang="zh-Hans"] .ps-card-label,
html[lang="zh-Hans"] .service-title,
html[lang="zh-Hans"] .why-title,
html[lang="zh-Hans"] .contact-text h2,
html[lang="zh-Hans"] .contact-form h3 {
    font-family: 'Noto Sans SC', 'Bebas Neue', 'Arial Narrow', sans-serif;
}
html[lang="zh-Hans"] .hero-label,
html[lang="zh-Hans"] .section-label,
html[lang="zh-Hans"] .stat-label,
html[lang="zh-Hans"] .nav-links a,
html[lang="zh-Hans"] .nav-cta,
html[lang="zh-Hans"] .btn-primary,
html[lang="zh-Hans"] .btn-secondary,
html[lang="zh-Hans"] .form-submit {
    font-family: 'Noto Sans SC', 'Barlow', 'Helvetica Neue', sans-serif;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: 1fr 1fr; }
    .services-grid .service-card:last-child { grid-column: 1 / -1; max-width: 500px; margin: 0 auto; width: 100%; }
}

@media (max-width: 768px) {
    .hero-bg-image { width: 100%; opacity: 0.2; mask-image: none; -webkit-mask-image: none; }
    .why-us-images { grid-template-columns: 1fr; }
    .menu-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        gap: 1.5rem;
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        border-left: 1px solid rgba(168, 7, 4, 0.15);
    }
    .nav-links.open { right: 0; }
    .nav-links a { font-size: 1rem; }

    .hero-content { padding: 7rem 1.5rem 4rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat-item:nth-child(2)::after { display: none; }
    .ps-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .ps-grid::before { display: none; }
    .services-grid { grid-template-columns: 1fr; }
    .services-grid .service-card:last-child { max-width: none; }
    .why-grid { grid-template-columns: 1fr; }
    .contact-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    /* Language selector mobile */
    .lang-selector {
        width: 100%;
    }
    .lang-current {
        width: 100%;
        justify-content: center;
    }
    .lang-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        margin-top: 0.5rem;
        border: none;
        background: rgba(168, 7, 4, 0.04);
    }
    .lang-selector.open .lang-dropdown {
        display: block;
    }
}

@media (max-width: 480px) {
    .hero-title .line2 { font-size: 3.8rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat-item { padding: 1.5rem 1rem; }
}