/* ============================================
   VN POWER - OPTIMIZED STYLESHEET
   ============================================ */

/* ===== RESET & BASE ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1a1a2e;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Screen reader only */
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: #00b894;
    color: #fff;
    padding: 12px 20px;
    z-index: 9999;
    border-radius: 0 0 8px 0;
    font-weight: 600;
    transition: top 0.3s;
}
.skip-link:focus { top: 0; }

/* Focus visible */
:focus-visible {
    outline: 3px solid #00b894;
    outline-offset: 3px;
    border-radius: 4px;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: linear-gradient(135deg, #00b894, #00a86b); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #00a86b; }

/* ===== SCROLL PROGRESS ===== */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, #00b894, #00d2a0);
    z-index: 1002;
    transition: width 0.1s linear;
}

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 70px;
    z-index: 1000;
    padding: 0 16px;
    background: rgba(11, 28, 45, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}
header.scrolled .logo-text { color: #1a1a2e; }
header.scrolled .hamburger span { background: #1a1a2e; }
header.scrolled .hamburger { background: rgba(0, 0, 0, 0.04); }
header.scrolled .hamburger:hover { background: rgba(0, 0, 0, 0.08); }

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, #00b894, #00a86b);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 18px; font-weight: 900;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
    transition: transform 0.3s;
}
.logo:hover .logo-icon { transform: rotate(-5deg) scale(1.05); }
.logo-text {
    font-size: 22px; font-weight: 800;
    color: #fff; letter-spacing: -0.5px;
    transition: color 0.3s;
}
.logo-text span { color: #00d2a0; }

/* ===== HAMBURGER ===== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    min-width: 44px; min-height: 44px;
    padding: 10px;
    z-index: 1001;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    border: none;
    transition: all 0.3s;
}
.hamburger:hover { background: rgba(255, 255, 255, 0.15); }
.hamburger span {
    display: block;
    width: 24px; height: 2.5px;
    background: #fff;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); background: #00b894; }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); background: #00b894; }

/* ===== OVERLAY & DRAWER ===== */
.menu-overlay {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0; visibility: hidden;
    transition: all 0.35s;
}
.menu-overlay.active { opacity: 1; visibility: visible; }

.nav-links {
    position: fixed;
    top: 0; right: 0;
    width: 100vw; height: 100vh;
    z-index: 1001;
    background: linear-gradient(145deg, #0B1C2D 0%, #162E48 100%);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 60px 24px 30px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.nav-links.active { transform: translateX(0); }

.menu-close {
    position: absolute;
    top: 16px; right: 16px;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: #fff; font-size: 20px;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.3s;
    z-index: 1002;
}
.menu-close:hover { background: rgba(255, 255, 255, 0.15); transform: rotate(90deg); }

.menu-brand {
    color: rgba(255, 255, 255, 0.3);
    font-size: 13px; font-weight: 500;
    letter-spacing: 2px; text-transform: uppercase;
    margin-bottom: 30px; padding-left: 4px;
}
.menu-brand span { color: #00d2a0; }

.nav-links .nav-items {
    display: flex; flex-direction: column;
    margin-bottom: 30px; flex: 1;
}
.nav-links .nav-items li { border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.nav-links .nav-items li:last-child { border-bottom: none; }
.nav-links .nav-items a {
    display: block;
    color: rgba(255, 255, 255, 0.85);
    font-size: 18px; font-weight: 500;
    padding: 14px 4px;
    transition: all 0.25s;
    position: relative;
}
.nav-links .nav-items a:hover { color: #00b074; transform: translateX(6px); }
.nav-links .nav-items a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, #00b074, #00d2a0);
    transition: width 0.3s;
}
.nav-links .nav-items a:hover::after { width: 30px; }

.menu-cta {
    background: linear-gradient(135deg, #00b074, #00a86b);
    color: #fff;
    width: calc(100% - 48px);
    margin: 0 auto 20px;
    padding: 16px 24px;
    border-radius: 50px;
    font-weight: 600; font-size: 16px;
    text-align: center; display: block;
    box-shadow: 0 4px 20px rgba(0, 176, 116, 0.35);
    transition: all 0.3s;
}
.menu-cta:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0, 176, 116, 0.45); }
.menu-cta i { margin-right: 10px; }

.menu-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.menu-footer .contact-info { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.menu-footer .contact-info a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    display: inline-flex; align-items: center; gap: 10px;
    transition: color 0.3s;
}
.menu-footer .contact-info a:hover { color: #00b074; }
.menu-footer .contact-info i { width: 20px; color: #00b074; }
.menu-social { display: flex; gap: 12px; }
.menu-social a {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex; align-items: center; justify-content: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 16px;
    transition: all 0.3s;
}
.menu-social a:hover {
    border-color: #00b074; color: #00b074;
    transform: translateY(-4px);
    background: rgba(0, 176, 116, 0.1);
}

/* ===== DESKTOP LINKS ===== */
.desktop-links {
    display: flex; align-items: center;
    gap: 32px;
}
.desktop-links a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500; font-size: 15px;
    transition: color 0.3s;
    position: relative;
}
.desktop-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: #00d2a0;
    transition: width 0.3s;
}
.desktop-links a:hover::after { width: 100%; }
.desktop-links a:hover { color: #fff; }
header.scrolled .desktop-links a { color: #1a1a2e; }
header.scrolled .desktop-links a:hover { color: #00b894; }

.desktop-links .btn-primary {
    background: linear-gradient(135deg, #00b894, #00a86b);
    color: #fff;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600; font-size: 13px;
    transition: all 0.3s;
    border: none; cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    position: relative; overflow: hidden;
}
.desktop-links .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.35);
}
.desktop-links .btn-primary::after { display: none; }

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    background: linear-gradient(160deg, rgba(10, 22, 40, 0.9) 0%, rgba(26, 42, 74, 0.8) 50%, rgba(13, 31, 60, 0.9) 100%),
                url('https://images.unsplash.com/photo-1509391366360-2e959784a276?w=1920&q=80') center/cover no-repeat;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding-top: 70px;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(0, 184, 148, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: pulse-glow 8s ease-in-out infinite;
    will-change: transform, opacity;
}
@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative; z-index: 2;
    padding: 40px 0;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0, 184, 148, 0.15);
    border: 1px solid rgba(0, 184, 148, 0.2);
    padding: 8px 18px;
    border-radius: 50px;
    color: #00d2a0;
    font-size: 13px; font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.hero-badge .dot {
    width: 8px; height: 8px;
    background: #00d2a0; border-radius: 50%;
    animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}
.hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.15;
    color: #fff;
    margin-bottom: 20px;
}
.hero h1 .highlight {
    background: linear-gradient(135deg, #00d2a0, #00b894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative; display: inline-block;
}
.hero h1 .highlight::after {
    content: '';
    position: absolute;
    bottom: 5px; left: 0; right: 0;
    height: 8px;
    background: rgba(0, 184, 148, 0.2);
    border-radius: 4px;
    z-index: -1;
}
.hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.8;
}
.hero p strong { color: #00d2a0; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-stats {
    display: flex; gap: 48px;
    margin-top: 50px; padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-stats .stat h3 {
    font-size: 36px; font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, #fff, #00d2a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-stats .stat h3 span { color: #00d2a0; -webkit-text-fill-color: #00d2a0; }
.hero-stats .stat p { font-size: 14px; color: rgba(255, 255, 255, 0.6); margin-bottom: 0; }

.hero-visual { display: flex; justify-content: center; align-items: center; position: relative; }
.hero-visual .circle-bg {
    width: 480px; height: 480px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.08), rgba(0, 210, 160, 0.02));
    border: 1px solid rgba(0, 184, 148, 0.06);
    position: relative;
    display: flex; align-items: center; justify-content: center;
    animation: rotate-slow 40s linear infinite;
    will-change: transform;
}
@keyframes rotate-slow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.hero-visual .icon-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    animation: rotate-reverse 40s linear infinite;
    will-change: transform;
}
@keyframes rotate-reverse {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(-360deg); }
}
.hero-visual .icon-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 20px 16px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.4s;
}
.hero-visual .icon-item:hover {
    transform: translateY(-6px) scale(1.05);
    background: rgba(0, 184, 148, 0.15);
    border-color: rgba(0, 184, 148, 0.3);
    box-shadow: 0 10px 40px rgba(0, 184, 148, 0.1);
}
.hero-visual .icon-item i { font-size: 32px; color: #00d2a0; margin-bottom: 8px; }
.hero-visual .icon-item span { display: block; color: rgba(255, 255, 255, 0.75); font-size: 12px; font-weight: 500; }

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 16px 20px;
    display: flex; align-items: center; gap: 12px;
    animation: float 6s ease-in-out infinite;
    will-change: transform;
}
.floating-card:nth-child(2) { top: 10%; right: -10%; animation-delay: 1s; }
.floating-card:nth-child(3) { bottom: 20%; left: -15%; animation-delay: 2s; }
.floating-card .dot-green {
    width: 10px; height: 10px; border-radius: 50%;
    background: #00d2a0;
    animation: pulse-dot 1.5s infinite;
}
.floating-card .card-text { color: #fff; font-size: 13px; font-weight: 500; }
.floating-card .card-text small { display: block; font-weight: 400; opacity: 0.7; font-size: 11px; }
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ===== BUTTONS ===== */
.btn-primary {
    background: linear-gradient(135deg, #00b894, #00a86b);
    color: #fff;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600; font-size: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none; cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    position: relative; overflow: hidden;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 184, 148, 0.4);
}
.btn-secondary {
    background: transparent;
    color: #fff;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600; font-size: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s;
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* ===== SECTION TITLE ===== */
.section-title { text-align: center; margin-bottom: 60px; }
.section-title .tag {
    display: inline-block;
    background: rgba(0, 184, 148, 0.1);
    color: #00b894;
    font-size: 13px; font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid rgba(0, 184, 148, 0.1);
}
.section-title h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: #1a1a2e;
    position: relative; display: inline-block;
}
.section-title h2 .highlight {
    background: linear-gradient(135deg, #00b894, #00d2a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -8px; left: 50%;
    transform: translateX(-50%);
    width: 60px; height: 4px;
    background: linear-gradient(90deg, #00b894, #00d2a0);
    border-radius: 4px;
}
.section-title p { color: #666; max-width: 580px; margin: 20px auto 0; font-size: 17px; }

/* ===== SERVICES ===== */
.services { padding: 100px 0; background: #f8fafc; position: relative; }
.services::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #00b894, #00d2a0, #00b894);
    background-size: 200% 100%;
    animation: gradient-shift 3s ease-in-out infinite;
}
@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.service-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px 32px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid #eef2f6;
    position: relative; overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #00b894, #00d2a0);
    opacity: 0;
    transition: opacity 0.4s;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 184, 148, 0.2);
}
.service-card:hover::before { opacity: 1; }
.service-card .icon {
    width: 60px; height: 60px;
    border-radius: 16px;
    background: rgba(0, 184, 148, 0.1);
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; color: #00b894;
    margin-bottom: 20px;
    transition: all 0.3s;
}
.service-card:hover .icon {
    background: linear-gradient(135deg, #00b894, #00a86b);
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.3);
}
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: #1a1a2e; }
.service-card p { color: #666; font-size: 15px; line-height: 1.7; }
.service-card .learn-more {
    display: inline-flex; align-items: center; gap: 6px;
    color: #00b894; font-weight: 600; font-size: 14px;
    margin-top: 16px;
    transition: all 0.3s;
}
.service-card .learn-more:hover { gap: 12px; color: #00a86b; }

/* ===== ABOUT ===== */
.about { padding: 100px 0; background: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image { position: relative; }
.about-image .image-placeholder {
    width: 100%; height: 420px;
    border-radius: 24px;
    background: linear-gradient(135deg, #0a1628, #1a2a4a);
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0,0,0,0.08);
    position: relative;
}
.about-image .image-placeholder::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.2), transparent);
    pointer-events: none; z-index: 1;
}
.about-image .image-placeholder img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.about-image:hover .image-placeholder img { transform: scale(1.05); }
.about-image .experience-badge {
    position: absolute;
    bottom: -20px; right: -20px;
    background: #fff;
    border-radius: 16px;
    padding: 24px 32px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    text-align: center;
    border: 1px solid rgba(0, 184, 148, 0.1);
    z-index: 2;
}
.about-image .experience-badge h3 { font-size: 32px; font-weight: 800; color: #00b894; }
.about-image .experience-badge p { font-size: 14px; color: #666; margin-bottom: 0; }

.about-content .tag {
    display: inline-block;
    background: rgba(0, 184, 148, 0.1);
    color: #00b894;
    font-size: 13px; font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 16px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.about-content h2 { font-size: clamp(26px, 3.5vw, 38px); font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.about-content h2 .highlight { color: #00b894; }
.about-content p { color: #555; font-size: 16px; line-height: 1.8; margin-bottom: 16px; }
.about-content p strong { color: #00b894; }
.about-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.about-values .value-item {
    background: #f8fafc;
    border-radius: 12px;
    padding: 16px 20px;
    text-align: center;
    border: 1px solid #eef2f6;
    transition: all 0.3s;
}
.about-values .value-item:hover {
    border-color: #00b894;
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.04);
}
.about-values .value-item h4 { font-size: 14px; font-weight: 700; color: #1a1a2e; }
.about-values .value-item p { font-size: 12px; color: #888; margin-bottom: 0; }

/* ===== BENEFITS ===== */
.benefits { padding: 80px 0; background: #f8fafc; }
.benefits-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.benefit-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 16px;
    background: #fff;
    border: 1px solid #eef2f6;
    transition: all 0.4s;
}
.benefit-item:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: #00b894;
    box-shadow: 0 12px 40px rgba(0, 184, 148, 0.1);
}
.benefit-item i {
    font-size: 36px; color: #00b894;
    margin-bottom: 12px;
    transition: all 0.3s;
    display: inline-block;
}
.benefit-item:hover i { transform: scale(1.2) rotate(-5deg); }
.benefit-item h4 { font-weight: 700; color: #1a1a2e; font-size: 15px; }
.benefit-item p { font-size: 13px; color: #888; margin-bottom: 0; }

/* ===== PROJECTS ===== */
.projects { padding: 100px 0; background: #fff; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.projects-grid-2 { grid-template-columns: repeat(2, 1fr); }
.wind-section { background: #f8fafc; padding-top: 0; }
.project-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s;
    border: 1px solid #eef2f6;
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 184, 148, 0.2);
}
.project-card .image {
    height: 220px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0a1628, #1a2a4a);
}
.project-card .image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.project-card:hover .image img { transform: scale(1.08); }
.project-card .image .overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 20px 24px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
}
.project-card .image .overlay span {
    font-size: 13px; font-weight: 500;
    color: #fff;
    background: rgba(0, 184, 148, 0.25);
    padding: 4px 12px;
    border-radius: 50px;
    backdrop-filter: blur(4px);
}
.project-card .info { padding: 24px; }
.project-card .info h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.project-card .info p { color: #888; font-size: 14px; }
.project-card .info .capacity {
    display: inline-block;
    background: rgba(0, 184, 148, 0.1);
    color: #00b894;
    font-weight: 600; font-size: 13px;
    padding: 4px 14px;
    border-radius: 50px;
    margin-top: 8px;
}
.project-card .info .extra-info {
    font-size: 12px; color: #999; margin-top: 6px;
}

/* ===== INFRASTRUCTURE ===== */
.infrastructure { padding: 80px 0; background: #f8fafc; }
.infra-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.infra-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    border: 1px solid #eef2f6;
    transition: all 0.4s;
    position: relative;
}
.infra-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #00b894, #00d2a0);
    transform: scaleX(0);
    transition: transform 0.4s;
}
.infra-card:hover::after { transform: scaleX(1); }
.infra-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}
.infra-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.infra-card .location { color: #888; font-size: 14px; margin-bottom: 12px; }
.infra-card .location i { color: #00b894; }
.infra-card .detail { font-size: 14px; color: #555; line-height: 1.6; }
.infra-card .detail strong { color: #1a1a2e; }

/* ===== RADIATION TABLE ===== */
.radiation { padding: 80px 0; background: #f8fafc; }
.table-wrapper { overflow-x: auto; border-radius: 16px; box-shadow: 0 4px 30px rgba(0,0,0,0.04); }
.radiation-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
    background: #fff;
}
.radiation-table th {
    background: linear-gradient(135deg, #0a1628, #1a2a4a);
    color: #fff;
    padding: 16px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}
.radiation-table td {
    padding: 14px 20px;
    border-bottom: 1px solid #eef2f6;
    font-size: 14px;
}
.radiation-table tr:nth-child(even) td { background: #fafbfc; }
.radiation-table tr:hover td { background: rgba(0, 184, 148, 0.05); }

/* ===== PROCESS ===== */
.process { padding: 80px 0; background: #fff; }
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
    position: relative;
}
.process-steps::before {
    content: '';
    position: absolute;
    top: 32px; left: 12%; right: 12%;
    height: 2px;
    background: linear-gradient(90deg, #00b894, #00d2a0);
    opacity: 0.2;
}
.process-step .step-number {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00b894, #00a86b);
    color: #fff;
    font-size: 28px; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.3);
    transition: all 0.3s;
    position: relative; z-index: 2;
}
.process-step:hover .step-number {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 12px 35px rgba(0, 184, 148, 0.4);
}
.process-step h3 { font-weight: 700; color: #1a1a2e; font-size: 18px; }
.process-step p { font-size: 14px; color: #888; }

/* ============================================
   NEWS SECTION (OPTIMIZED)
   ============================================ */
.news { padding: 100px 0; background: #fff; }

/* Featured */
.news-featured { margin-bottom: 40px; }
.news-featured-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid #eef2f6;
    transition: all 0.4s;
}
.news-featured-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 184, 148, 0.3);
    transform: translateY(-4px);
}
.news-featured-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: #f1f5f9;
}
.news-featured-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.news-featured-card:hover .news-featured-image img { transform: scale(1.05); }

.news-badge {
    position: absolute;
    top: 16px; left: 16px;
    background: linear-gradient(135deg, #00b894, #00a86b);
    color: #fff;
    font-size: 12px; font-weight: 600;
    padding: 6px 14px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}
.featured-badge {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
}

.news-featured-info {
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
}
.news-featured-info h3 {
    font-size: 24px;
    font-weight: 800;
    line-height: 1.35;
    color: #1e293b;
    transition: color 0.3s;
}
.news-featured-card:hover .news-featured-info h3 { color: #00b894; }
.news-featured-info p {
    font-size: 15px;
    color: #64748b;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Meta */
.news-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 12px;
    color: #94a3b8;
}
.news-meta span { display: inline-flex; align-items: center; gap: 5px; }
.news-category {
    background: rgba(0, 184, 148, 0.1);
    color: #00b894;
    padding: 4px 12px;
    border-radius: 50px;
    font-weight: 600;
}
.news-meta i { font-size: 11px; }

.news-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #00b894;
    font-weight: 600;
    font-size: 14px;
    margin-top: 4px;
    transition: gap 0.3s;
}
.news-featured-card:hover .news-cta { gap: 14px; }

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.news-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #eef2f6;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #d1fae5;
}
.news-image {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: #f1f5f9;
    position: relative;
}
.news-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.news-card:hover .news-image img { transform: scale(1.06); }

.news-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.news-info h3 {
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s;
}
.news-card:hover .news-info h3 { color: #00b894; }
.news-info p {
    font-size: 13px;
    color: #64748b;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    text-align: center;
    margin-top: 50px;
}
.btn-view-all {
    padding: 14px 36px;
    font-size: 15px;
}

/* ============================================
   PARTNERS
   ============================================ */
.partners { padding: 80px 0; background: #fff; overflow: hidden; }
.partners-wrapper { position: relative; overflow: hidden; }
.partners-wrapper::before,
.partners-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    width: 80px; height: 100%;
    z-index: 2;
    pointer-events: none;
}
.partners-wrapper::before { left: 0; background: linear-gradient(to right, #fff, transparent); }
.partners-wrapper::after { right: 0; background: linear-gradient(to left, #fff, transparent); }
.partners-grid {
    display: flex;
    gap: 30px;
    align-items: center;
    animation: scroll-partners 25s linear infinite;
    width: max-content;
    will-change: transform;
}
.partners-grid:hover { animation-play-state: paused; }
.partners-grid .partner {
    background: #fff;
    border-radius: 16px;
    padding: 20px 30px;
    border: 1px solid #eef2f6;
    transition: all 0.3s;
    flex-shrink: 0;
    min-width: 180px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}
.partners-grid .partner:hover {
    border-color: #00b894;
    box-shadow: 0 8px 30px rgba(0, 184, 148, 0.1);
    transform: scale(1.05) translateY(-4px);
}
.partners-grid .partner img {
    max-width: 140px; max-height: 60px;
    object-fit: contain;
}
@keyframes scroll-partners {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   CTA + CONTACT FORM
   ============================================ */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a1628, #1a2a4a);
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0, 184, 148, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: pulse-glow 6s ease-in-out infinite;
}
.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative; z-index: 2;
}
.cta-content h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}
.cta-content h2 .highlight {
    background: linear-gradient(135deg, #00d2a0, #00b894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-content > p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 17px;
    margin-bottom: 32px;
    line-height: 1.7;
}
.cta-contact-info { display: flex; flex-direction: column; gap: 16px; }
.cta-contact-item {
    display: flex; align-items: center; gap: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    padding: 16px 20px;
    transition: all 0.3s;
}
.cta-contact-item:hover {
    background: rgba(0, 184, 148, 0.1);
    border-color: rgba(0, 184, 148, 0.3);
    transform: translateX(6px);
}
.cta-contact-item i {
    font-size: 22px;
    color: #00d2a0;
    width: 44px; height: 44px;
    background: rgba(0, 184, 148, 0.15);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.cta-contact-item small {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    margin-bottom: 2px;
}
.cta-contact-item strong {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
}

/* Form */
.cta-form-wrapper {
    background: #fff;
    border-radius: 24px;
    padding: 40px 36px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}
.contact-form h3 {
    font-size: 22px;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 24px;
    text-align: center;
}
.form-group { margin-bottom: 16px; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid #e2e8f0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 15px;
    color: #1a1a2e;
    background: #f8fafc;
    transition: all 0.3s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00b894;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(0, 184, 148, 0.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group select { cursor: pointer; }

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 16px;
    margin-top: 8px;
}
.form-note {
    text-align: center;
    color: #94a3b8;
    font-size: 12px;
    margin-top: 12px;
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: #0a0a1a;
    padding: 60px 0 30px;
    color: rgba(255, 255, 255, 0.6);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo-text {
    color: #fff;
    font-size: 22px;
    margin-bottom: 16px;
    display: block;
}
.footer-brand p { font-size: 14px; max-width: 320px; line-height: 1.8; }
.footer-ceo {
    margin-top: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
.footer-col h5 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 16px;
    font-size: 16px;
    position: relative;
    display: inline-block;
}
.footer-col h5::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 30px; height: 2px;
    background: #00b894;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; font-size: 14px; }
.footer-col ul li a {
    font-size: 14px;
    transition: color 0.3s;
    display: inline-block;
}
.footer-col ul li a:hover { color: #00d2a0; transform: translateX(4px); }
.footer-col ul li i { color: #00b894; margin-right: 8px; width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
}
.footer-socials { display: flex; gap: 16px; }
.footer-socials a {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex; align-items: center; justify-content: center;
    transition: all 0.3s;
    color: rgba(255, 255, 255, 0.5);
}
.footer-socials a:hover {
    border-color: #00b894;
    color: #00b894;
    transform: translateY(-3px) scale(1.1);
    background: rgba(0, 184, 148, 0.1);
}

/* ============================================
   FLOATING WIDGETS
   ============================================ */
/* Chat widget */
.chat-widget {
    position: fixed;
    bottom: 24px; right: 24px;
    display: flex; flex-direction: column;
    gap: 12px;
    z-index: 998;
}
.chat-btn {
    width: 56px; height: 56px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 22px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s;
    position: relative;
}
.chat-btn:hover { transform: scale(1.1) translateY(-3px); }
.chat-zalo { background: linear-gradient(135deg, #0068ff, #0084ff); }
.chat-phone {
    background: linear-gradient(135deg, #00b894, #00a86b);
    animation: ring-pulse 2s infinite;
}
@keyframes ring-pulse {
    0%, 100% { box-shadow: 0 8px 25px rgba(0, 184, 148, 0.3); }
    50% { box-shadow: 0 8px 25px rgba(0, 184, 148, 0.6), 0 0 0 12px rgba(0, 184, 148, 0.1); }
}
.chat-tooltip {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%) translateX(-10px);
    background: #1a1a2e;
    color: #fff;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
}
.chat-btn:hover .chat-tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(-6px);
}

/* Back to top */
.back-to-top {
    position: fixed;
    bottom: 24px; left: 24px;
    width: 48px; height: 48px;
    border-radius: 50%;
    background: #fff;
    color: #00b894;
    font-size: 18px;
    border: 2px solid #00b894;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: #00b894;
    color: #fff;
    transform: translateY(-3px);
}

/* Sticky CTA Mobile */
.sticky-cta-mobile {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(135deg, #00b894, #00a86b);
    color: #fff;
    text-align: center;
    padding: 14px 20px;
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 997;
    display: none;
}
.sticky-cta-mobile i { margin-right: 8px; }

/* Toast */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1a1a2e;
    color: #fff;
    padding: 14px 24px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    max-width: 90%;
    text-align: center;
}
.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.toast.success { background: linear-gradient(135deg, #00b894, #00a86b); }
.toast.error { background: linear-gradient(135deg, #e74c3c, #c0392b); }

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero p { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual .circle-bg { width: 380px; height: 380px; }
    .floating-card:nth-child(2) { right: 5%; }
    .floating-card:nth-child(3) { left: 5%; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .infra-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .process-steps::before { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .news-grid { grid-template-columns: repeat(3, 1fr); }
    .cta-grid { grid-template-columns: 1fr; gap: 40px; }
    .news-featured-card { grid-template-columns: 1fr; }
    .news-featured-image { aspect-ratio: 16/9; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }
    .desktop-links { display: none; }

    .hero { min-height: auto; padding: 100px 0 60px; }
    .hero h1 { font-size: 32px; }
    .hero-visual .circle-bg { width: 280px; height: 280px; }
    .hero-visual .icon-grid { gap: 12px; }
    .hero-visual .icon-item { padding: 12px 10px; }
    .hero-visual .icon-item i { font-size: 22px; }
    .hero-stats { gap: 24px; flex-wrap: wrap; }
    .hero-stats .stat h3 { font-size: 28px; }
    .services-grid { grid-template-columns: 1fr; }
    .projects-grid, .projects-grid-2 { grid-template-columns: 1fr; }
    .infra-grid { grid-template-columns: 1fr; }
    .section-title h2 { font-size: 28px; }
    .about-content h2 { font-size: 26px; }
    .about-values { grid-template-columns: 1fr; }
    .benefits-grid { grid-template-columns: 1fr 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .floating-card { display: none; }
    .partners-grid .partner { min-width: 140px; padding: 16px 20px; }
    .partners-grid .partner img { max-width: 100px; max-height: 40px; }
    .partners-wrapper::before,
    .partners-wrapper::after { width: 40px; }

    .news { padding: 60px 0; }
    .news-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .news-featured-info { padding: 24px; }
    .news-featured-info h3 { font-size: 18px; }

    .nav-links { padding: 70px 24px 30px; }
    .nav-links .nav-items a { font-size: 18px; padding: 14px 4px; }
    .menu-cta { width: calc(100% - 48px); margin: 0 auto 16px; }

    .cta-form-wrapper { padding: 28px 24px; }
    .cta { padding: 60px 0 100px; }

    /* Show mobile widgets */
    .sticky-cta-mobile { display: block; }
    .back-to-top { bottom: 80px; }
    .chat-widget { bottom: 80px; right: 16px; }
    .chat-btn { width: 48px; height: 48px; font-size: 18px; }
    .toast { bottom: 140px; }
}

@media (max-width: 480px) {
    .benefits-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .nav-links .nav-items a { font-size: 16px; padding: 12px 4px; }
    .menu-cta { font-size: 15px; padding: 14px 20px; }
    .menu-footer .contact-info a { font-size: 13px; }
    .hero-stats { flex-direction: column; gap: 16px; align-items: center; }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .hero-visual .circle-bg,
    .hero-visual .icon-grid,
    .partners-grid,
    .chat-phone { animation: none !important; }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
    header, footer, .chat-widget, .back-to-top,
    .sticky-cta-mobile, .scroll-progress { display: none !important; }
    body { color: #000; background: #fff; }
    a { text-decoration: underline; }
}

/* ============================================
   POWER TABLE (Bảng công suất thiết bị)
   ============================================ */
.power-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 480px;
    background: #fff;
    font-size: 14px;
}
.power-table thead {
    background: linear-gradient(135deg, #38761d, #4a8f2a);
    color: #fff;
}
.power-table th {
    padding: 14px 18px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.3px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}
.power-table th:first-child {
    width: 60%;
}
.power-table th:last-child {
    width: 40%;
    text-align: right;
}
.power-table td {
    padding: 12px 18px;
    border: 1px solid #e5e7eb;
    color: #334155;
    line-height: 1.5;
}
.power-table td:last-child {
    text-align: right;
    font-weight: 600;
    color: #00b894;
    font-variant-numeric: tabular-nums;
}
.power-table tbody tr:nth-child(even) td {
    background: #f8fafc;
}
.power-table tbody tr:hover td {
    background: rgba(0, 184, 148, 0.06);
    transition: background 0.2s;
}

/* Responsive cho bảng công suất */
@media (max-width: 600px) {
    .power-table {
        font-size: 13px;
    }
    .power-table th,
    .power-table td {
        padding: 10px 12px;
    }
    .power-table th:first-child {
        width: 55%;
    }
    .power-table th:last-child {
        width: 45%;
    }
}