/* ======================================
   QM Smarts - Award Winning CSS
   Modern, Animated, Beautiful
   ====================================== */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-dark: #2563eb;
    --secondary: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --purple: #8b5cf6;

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-glow: linear-gradient(135deg, rgba(59, 130, 246, 0.3) 0%, rgba(6, 182, 212, 0.3) 100%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;

    /* Spacing */
    --section-padding: 120px;
    --container-width: 1280px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.3);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--primary);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul {
    list-style: none;
}

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

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

/* ===== Preloader ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid transparent;
}

.loader-ring:nth-child(1) {
    border-top-color: var(--accent);
    animation: spin 1.5s linear infinite;
}

.loader-ring:nth-child(2) {
    width: 80%;
    height: 80%;
    border-right-color: var(--secondary);
    animation: spin 1.2s linear infinite reverse;
}

.loader-ring:nth-child(3) {
    width: 60%;
    height: 60%;
    border-bottom-color: var(--success);
    animation: spin 1s linear infinite;
}

.loader-text {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 2px;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Section Base ===== */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-glow);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-light);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray-400);
    max-width: 700px;
    margin: 0 auto;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 40px;
    transition: var(--transition-normal);
}

.nav-logo:hover img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-300);
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: transform 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

.nav-link.active::after,
.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

/* Language Selector */
.language-selector {
    display: flex;
    gap: 4px;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lang-btn {
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-400);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.lang-btn:hover {
    color: var(--white);
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
}

/* Nav Toggle (Mobile) */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    padding: 0;
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.4) 0%, transparent 70%);
    top: -20%;
    right: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, transparent 70%);
    bottom: -10%;
    left: -10%;
    animation-delay: 2s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    top: 40%;
    left: 30%;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -20px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.95);
    }
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 15s linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }

    10% {
        opacity: 0.3;
    }

    90% {
        opacity: 0.3;
    }

    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 24px;
    animation: pulse-border 2s ease-in-out infinite;
}

@keyframes pulse-border {

    0%,
    100% {
        border-color: rgba(59, 130, 246, 0.3);
    }

    50% {
        border-color: rgba(59, 130, 246, 0.6);
    }
}

.hero-badge i {
    color: var(--success);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {

    0%,
    100% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(1.2);
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-400);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-3px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 60px;
    justify-content: center;
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 4px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--gray-500);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 4px;
    animation: scroll 1.5s ease-in-out infinite;
}

@keyframes scroll {

    0%,
    100% {
        opacity: 1;
        transform: translateY(0);
    }

    50% {
        opacity: 0.3;
        transform: translateY(8px);
    }
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===== About Section - PDCA ===== */
.about {
    background: var(--gradient-dark);
}

.pdca-container {
    max-width: 900px;
    margin: 0 auto;
}

.pdca-cycle {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
}

.pdca-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: var(--primary);
    border: 3px solid var(--accent);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: var(--shadow-glow);
    animation: rotate-slow 20s linear infinite;
}

@keyframes rotate-slow {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.pdca-center i {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: rotate-slow 20s linear infinite reverse;
}

.pdca-center span {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: rotate-slow 20s linear infinite reverse;
}

.pdca-center small {
    font-size: 0.75rem;
    color: var(--gray-400);
    animation: rotate-slow 20s linear infinite reverse;
}

/* About Stats */
.about-stats {
    margin-bottom: 60px;
}

.pdca-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    gap: 20px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pdca-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    transition: var(--transition-normal);
}

.pdca-item.plan::before {
    background: var(--accent);
}

.pdca-item.do::before {
    background: var(--success);
}

.pdca-item.check::before {
    background: var(--warning);
}

.pdca-item.act::before {
    background: var(--purple);
}

.pdca-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

.pdca-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.pdca-item.plan .pdca-icon {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.pdca-item.do .pdca-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.pdca-item.check .pdca-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.pdca-item.act .pdca-icon {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple);
}

.pdca-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.pdca-content h4 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-300);
    margin-bottom: 8px;
}

.pdca-content p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===== Standards Section ===== */
.standards {
    background: var(--primary);
    position: relative;
}

.standards::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.standard-card {
    position: relative;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition-normal);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.standard-card:hover .card-glow {
    opacity: 1;
}

.card-border {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, transparent 40%, var(--accent) 50%, transparent 60%);
    background-size: 400% 400%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.standard-card:hover .card-border {
    opacity: 1;
    animation: borderRotate 3s linear infinite;
}

@keyframes borderRotate {
    0% {
        background-position: 0% 50%;
    }

    100% {
        background-position: 400% 50%;
    }
}

.standard-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.3);
}

.standard-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    transition: var(--transition-normal);
}

.standard-icon.eco {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.standard-icon.security {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.standard-icon.safety {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.standard-icon.food {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.standard-card:hover .standard-icon {
    transform: scale(1.1) rotate(5deg);
}

.standard-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}

.standard-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 12px;
}

.standard-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
}

/* ===== Modules Section ===== */
.modules {
    background: var(--gradient-dark);
}

.modules-tabs {
    max-width: 1100px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 40px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    color: var(--gray-400);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-normal);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--white);
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--white);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.tab-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.tab-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
}

.tab-image:hover img {
    transform: scale(1.05);
}

.floating-card {
    position: absolute;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white);
    animation: floatCard 3s ease-in-out infinite;
}

.floating-card i {
    color: var(--accent);
}

.floating-card.card-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 10%;
    left: -10%;
    animation-delay: 1.5s;
}

@keyframes floatCard {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.tab-info h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.feature-list li i {
    color: var(--success);
    font-size: 1rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-list li span {
    color: var(--gray-300);
    line-height: 1.6;
}

/* ===== Features Section ===== */
.features {
    background: var(--primary);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.feature-card.glass {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(59, 130, 246, 0.3);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-glow);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--white);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ===== Dashboard Section ===== */
.dashboard {
    background: var(--gradient-dark);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.dashboard-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: var(--transition-normal);
}

.dashboard-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.dashboard-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.dashboard-icon.blue {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.dashboard-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.dashboard-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.dashboard-icon.purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple);
}

.dashboard-info h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--white);
}

.dashboard-info p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.dashboard-stat {
    margin-top: auto;
}

.dashboard-stat .stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dashboard-stat span:not(.stat-value) {
    font-size: 1rem;
    color: var(--gray-400);
}

/* ===== Maintenance Types ===== */
.maintenance-types {
    background: var(--primary);
}

.maint-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.maint-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.maint-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

.maint-card.predictive::before {
    background: var(--accent);
}

.maint-card.preventive::before {
    background: var(--success);
}

.maint-card.corrective::before {
    background: var(--warning);
}

.maint-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.15);
}

.maint-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 24px;
    transition: var(--transition-normal);
}

.maint-card.predictive .maint-icon {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.maint-card.preventive .maint-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.maint-card.corrective .maint-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.maint-card:hover .maint-icon {
    transform: scale(1.1);
}

.maint-content h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.maint-detail {
    margin-bottom: 12px;
}

.maint-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-500);
    display: block;
    margin-bottom: 4px;
}

.maint-detail span:not(.maint-label) {
    font-size: 1rem;
    color: var(--gray-300);
}

/* ===== Timeline Section ===== */
.timeline-section {
    background: var(--gradient-dark);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 24px;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent), var(--secondary), var(--success));
}

.timeline-item {
    position: relative;
    padding: 24px 0 40px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-number {
    position: absolute;
    left: -60px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition-normal);
}

.timeline-item:hover .timeline-content {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateX(10px);
}

.timeline-content h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--white);
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--gray-400);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--primary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 70%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-info .section-tag,
.contact-info .section-title,
.contact-info .section-desc {
    text-align: left;
    margin-left: 0;
}

.contact-details {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: center;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-glow);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent);
}

.contact-item h4 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 1.1rem;
    color: var(--white);
    font-weight: 500;
}

.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 48px;
}

.contact-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.form-group {
    position: relative;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-normal);
    outline: none;
}

.form-group textarea {
    resize: none;
    min-height: 120px;
}

.form-group label {
    position: absolute;
    left: 20px;
    top: 16px;
    color: var(--gray-500);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
}

.form-group input:focus~label,
.form-group input:valid~label,
.form-group textarea:focus~label,
.form-group textarea:valid~label {
    top: -10px;
    left: 16px;
    font-size: 0.75rem;
    color: var(--accent);
    background: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
}

.focus-border {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

.form-group input:focus~.focus-border,
.form-group textarea:focus~.focus-border {
    left: 0;
    width: 100%;
}

.btn-submit {
    grid-column: span 2;
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

.form-message {
    grid-column: span 2;
    text-align: center;
    padding: 16px;
    border-radius: var(--radius-md);
    margin-top: 16px;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-light);
    position: relative;
    padding-top: 100px;
}

.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: translateY(-99%);
}

.footer-wave svg {
    width: 100%;
    height: 80px;
}

.footer-wave path {
    fill: var(--primary-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand img {
    height: 50px;
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--gray-400);
    font-size: 0.95rem;
    max-width: 300px;
}

.footer-links h4,
.footer-standards h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links ul li,
.footer-standards ul li {
    margin-bottom: 12px;
}

.footer-links a,
.footer-standards li {
    color: var(--gray-400);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent);
    transform: translateX(5px);
    display: inline-block;
}

.footer-contact p {
    color: var(--gray-400);
    font-size: 0.9rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 1rem;
    transition: var(--transition-normal);
}

.social-links a:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--white);
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ===== RTL Support ===== */
[dir="rtl"] {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] .pdca-item::before {
    left: auto;
    right: 0;
}

[dir="rtl"] .timeline {
    padding-left: 0;
    padding-right: 60px;
}

[dir="rtl"] .timeline::before {
    left: auto;
    right: 24px;
}

[dir="rtl"] .timeline-number {
    left: auto;
    right: -60px;
}

[dir="rtl"] .timeline-item:hover .timeline-content {
    transform: translateX(-10px);
}

[dir="rtl"] .floating-card.card-1 {
    right: auto;
    left: -10%;
}

[dir="rtl"] .floating-card.card-2 {
    left: auto;
    right: -10%;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 40px 40px;
        gap: 8px;
        transition: right 0.3s ease;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .language-selector {
        position: absolute;
        bottom: 40px;
        left: 40px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .contact-info .section-tag,
    .contact-info .section-title,
    .contact-info .section-desc {
        text-align: center;
    }

    .contact-details {
        align-items: center;
    }

    .tab-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .tab-image {
        order: -1;
    }

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

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

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 40px;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .pdca-cycle {
        grid-template-columns: 1fr;
    }

    .pdca-center {
        display: none;
    }

    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }

    .tab-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .form-group.full-width {
        grid-column: span 1;
    }

    .btn-submit {
        grid-column: span 1;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

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

    .timeline {
        padding-left: 40px;
    }

    .timeline-number {
        left: -40px;
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .contact-form-wrapper {
        padding: 32px 24px;
    }

    .language-selector {
        flex-wrap: wrap;
        justify-content: center;
    }

    .standard-card {
        padding: 32px 24px;
    }
}

/* ===== Animations on Scroll ===== */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-700);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}

/* ===== Selection ===== */
::selection {
    background: rgba(59, 130, 246, 0.3);
    color: var(--white);
}