/* ========================================
   CSS Variables & Base
   ======================================== */
:root {
    /* Colors - Professional blue palette */
    --bg-primary: #040812;
    --bg-secondary: #0a1628;
    --bg-tertiary: #0f2038;
    --bg-card: #0c1a2e;
    
    --text-primary: #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Blue spectrum */
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #006cc4;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;
    
    --accent: #006cc4;
    --accent-light: #3b82f6;
    --accent-lighter: #60a5fa;
    --accent-dark: #1e40af;
    
    /* Gradients */
    --gradient-blue: linear-gradient(135deg, var(--blue-400) 0%, var(--blue-600) 50%, var(--blue-800) 100%);
    --gradient-subtle: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    
    --border: rgba(148, 163, 184, 0.1);
    --border-light: rgba(148, 163, 184, 0.15);
    --border-blue: rgba(59, 130, 246, 0.3);
    
    /* Typography */
    --font-display: 'Syne', sans-serif;
    --font-serif: 'Instrument Serif', serif;
    
    /* Spacing */
    --section-padding: clamp(80px, 12vw, 160px);
    --container-width: 1200px;
    --container-padding: clamp(20px, 5vw, 40px);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-display);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

/* Subtle Grid Pattern */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.4;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 80%);
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* Images */
img {
    max-width: 100%;
    display: block;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px var(--container-padding);
    background: rgba(4, 8, 18, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 32px;
    height: auto;
}

.logo-text {
    height: 16px;
    width: auto;
}

.logo-stroke {
    fill: none;
    stroke: var(--blue-400);
    stroke-width: 6px;
    stroke-miterlimit: 10;
    transition: stroke var(--transition-fast);
}

.logo-fill {
    fill: var(--blue-400);
    transition: fill var(--transition-fast);
}

.nav-logo:hover .logo-stroke {
    stroke: var(--blue-300);
}

.nav-logo:hover .logo-fill {
    fill: var(--blue-300);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-cta {
    padding: 10px 20px;
    background: var(--accent);
    color: white !important;
    border-radius: 6px;
    font-weight: 600;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--accent-light);
    box-shadow: 0 4px 20px rgba(0, 108, 196, 0.4);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--accent);
    color: white;
    border: 1px solid transparent;
    transition: all var(--transition-base);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 108, 196, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-muted);
}

.btn-full {
    width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding: calc(100px + var(--section-padding)) var(--container-padding) var(--section-padding);
    max-width: calc(var(--container-width) + var(--container-padding) * 2);
    margin: 0 auto;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: var(--gradient-glow);
    pointer-events: none;
    z-index: -1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-blue), transparent);
}

.hero-content {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero-title .line {
    display: block;
}

.hero-title em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hexagonal Grid */
.hex-grid {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 20%;
    opacity: 0.6;
}

.hex {
    aspect-ratio: 1;
    background: linear-gradient(135deg, transparent 0%, rgba(59, 130, 246, 0.1) 50%, transparent 100%);
    border: 1px solid var(--border-blue);
    border-radius: 12px;
    animation: hexPulse 4s ease-in-out infinite;
}

.hex:nth-child(1) { animation-delay: 0s; }
.hex:nth-child(2) { animation-delay: 0.5s; }
.hex:nth-child(3) { animation-delay: 1s; }
.hex:nth-child(4) { animation-delay: 1.5s; }
.hex:nth-child(5) { animation-delay: 0.3s; }
.hex:nth-child(6) { animation-delay: 0.8s; }
.hex:nth-child(7) { animation-delay: 1.3s; grid-column: 2; }

@keyframes hexPulse {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(1);
    }
    50% { 
        opacity: 0.8;
        transform: scale(1.02);
    }
}

/* Core Element */
.core-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.core {
    width: 100px;
    height: 100px;
    background: var(--gradient-blue);
    border-radius: 20px;
    transform: rotate(45deg);
    box-shadow: 
        0 0 60px rgba(59, 130, 246, 0.4),
        0 0 120px rgba(0, 108, 196, 0.2),
        inset 0 0 30px rgba(0, 0, 0, 0.3);
    animation: corePulse 3s ease-in-out infinite;
}

.core-ring {
    position: absolute;
    border: 1px solid var(--blue-400);
    border-radius: 24px;
    transform: rotate(45deg);
    animation: ringExpand 3s ease-in-out infinite;
}

.core-ring:nth-child(2) {
    width: 140px;
    height: 140px;
    opacity: 0.4;
}

.core-ring:nth-child(3) {
    width: 180px;
    height: 180px;
    opacity: 0.2;
    animation-delay: 0.5s;
}

@keyframes corePulse {
    0%, 100% { 
        transform: rotate(45deg) scale(1);
        box-shadow: 
            0 0 60px rgba(59, 130, 246, 0.4),
            0 0 120px rgba(0, 108, 196, 0.2),
            inset 0 0 30px rgba(0, 0, 0, 0.3);
    }
    50% { 
        transform: rotate(45deg) scale(1.05);
        box-shadow: 
            0 0 80px rgba(59, 130, 246, 0.5),
            0 0 150px rgba(0, 108, 196, 0.3),
            inset 0 0 30px rgba(0, 0, 0, 0.3);
    }
}

@keyframes ringExpand {
    0%, 100% { 
        transform: rotate(45deg) scale(1);
        opacity: 0.4;
    }
    50% { 
        transform: rotate(45deg) scale(1.1);
        opacity: 0.2;
    }
}


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

/* ========================================
   Marquee Section
   ======================================== */
.marquee-section {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    overflow: hidden;
}

.marquee {
    display: flex;
    overflow: hidden;
}

.marquee-track {
    display: flex;
    gap: 60px;
    animation: marquee 30s linear infinite;
    white-space: nowrap;
}

.marquee-track span {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.marquee-track span:not(:empty):not(:contains('•')) {
    color: var(--blue-400);
    opacity: 0.8;
}

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

/* ========================================
   Security Guarantee Section
   ======================================== */
.guarantee {
    padding: var(--section-padding) var(--container-padding);
    max-width: calc(var(--container-width) + var(--container-padding) * 2);
    margin: 0 auto;
}

.guarantee-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 60px;
    align-items: start;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(15, 32, 56, 0.8) 100%);
    border: 1px solid var(--border-blue);
    border-radius: 24px;
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.guarantee-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-blue);
}

.guarantee-content::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.guarantee-badge {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-blue);
    border-radius: 20px;
    color: white;
    flex-shrink: 0;
}

.guarantee-badge svg {
    width: 50px;
    height: 50px;
}

.guarantee-text {
    position: relative;
    z-index: 1;
}

.guarantee-text h2 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--blue-400);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.guarantee-headline {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.guarantee-headline em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--blue-400);
}

.guarantee-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
}

.guarantee-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    list-style: none;
}

.guarantee-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
}

.guarantee-features svg {
    width: 20px;
    height: 20px;
    color: var(--blue-400);
    flex-shrink: 0;
}

/* Security service card highlight */
.service-card-security {
    border-color: var(--border-blue);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, var(--bg-card) 100%);
}

.service-card-security::before {
    opacity: 0.5;
}

.service-card-security .service-icon {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--blue-400);
}

/* ========================================
   Section Common Styles
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    padding: var(--section-padding) var(--container-padding);
    max-width: calc(var(--container-width) + var(--container-padding) * 2);
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.service-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(15, 32, 56, 0.5) 100%);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--blue-500), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover::before {
    opacity: 0.5;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3),
                0 0 0 1px var(--border-blue);
}

.service-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin-bottom: 20px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--blue-400);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.service-icon svg {
    width: 22px;
    height: 22px;
}

.service-card:hover .service-icon {
    background: rgba(59, 130, 246, 0.15);
    border-color: var(--blue-400);
}

.service-card:hover {
    border-color: var(--border-blue);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.5;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.service-tags li {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: 20px;
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: var(--section-padding) var(--container-padding);
    max-width: calc(var(--container-width) + var(--container-padding) * 2);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.about-title em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--blue-400);
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--blue-400);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* About Visual */
.about-visual {
    position: relative;
    height: 400px;
}

.float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-blue);
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    animation: float 6s ease-in-out infinite;
    transition: all var(--transition-base);
    box-shadow: 0 8px 32px rgba(0, 108, 196, 0.1);
}

.card-icon {
    font-size: 1.3rem;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ========================================
   Process Section
   ======================================== */
.process {
    padding: var(--section-padding) var(--container-padding);
    background: var(--bg-secondary);
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-blue), transparent);
}

.process::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-blue), transparent);
}

.process .section-header {
    max-width: var(--container-width);
    margin: 0 auto 60px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.process-step {
    padding: 36px;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(15, 32, 56, 0.5) 100%);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all var(--transition-base);
    position: relative;
}

.process-step::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--gradient-blue);
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.process-step:hover::after {
    opacity: 0.6;
}

.process-step:hover {
    border-color: var(--accent);
}

.step-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 20px;
    color: var(--blue-600);
    opacity: 0.4;
}

.process-step:hover .step-number {
    color: var(--blue-400);
    opacity: 0.8;
}

.process-step:hover {
    border-color: var(--border-blue);
}

.process-step h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    padding: var(--section-padding) var(--container-padding);
    max-width: calc(var(--container-width) + var(--container-padding) * 2);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 80px;
}

.contact-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.contact-title em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--blue-400);
}

.contact-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-display);
    font-size: 1rem;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b6b69' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--bg-secondary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding-top: 100px;
}

.info-block h4 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.info-block a,
.info-block p {
    font-size: 1rem;
    color: var(--text-primary);
}

.info-block a:hover {
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    border-color: var(--blue-400);
    color: var(--blue-400);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.2);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 40px var(--container-padding);
    border-top: 1px solid var(--border);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo .logo-icon {
    width: 28px;
}

.footer-logo .logo-text {
    height: 14px;
}

.footer-logo:hover .logo-stroke {
    stroke: var(--blue-300);
}

.footer-logo:hover .logo-fill {
    fill: var(--blue-300);
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ========================================
   Responsive Design
   ======================================== */

/* Large tablets and small desktops */
@media (max-width: 1024px) {
    :root {
        --section-padding: clamp(60px, 10vw, 120px);
    }
    
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        min-height: auto;
        padding-top: 140px;
        padding-bottom: 80px;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 350px;
        height: 350px;
        margin: 40px auto 0;
    }
    
    .hex-grid {
        padding: 15%;
    }
    
    .about {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-visual {
        order: -1;
        height: 280px;
    }
    
    .float-card {
        padding: 12px 18px;
        font-size: 0.85rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-info {
        padding-top: 0;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 40px;
    }
    
    .info-block {
        flex: 1;
        min-width: 150px;
    }
    
    .guarantee-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 48px;
    }
    
    .guarantee-badge {
        width: 80px;
        height: 80px;
    }
    
    .guarantee-badge svg {
        width: 40px;
        height: 40px;
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --section-padding: clamp(50px, 8vw, 100px);
        --container-padding: 24px;
    }
    
    .nav {
        padding: 16px var(--container-padding);
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        padding: 24px;
        border-bottom: 1px solid var(--border);
        gap: 16px;
    }
    
    .nav-links.active a {
        padding: 12px 0;
        font-size: 1rem;
    }
    
    .nav-links.active .nav-cta {
        text-align: center;
        padding: 14px 24px;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .hero-visual {
        max-width: 280px;
        height: 280px;
    }
    
    .core {
        width: 70px;
        height: 70px;
        border-radius: 14px;
    }
    
    .core-ring:nth-child(2) {
        width: 100px;
        height: 100px;
        border-radius: 18px;
    }
    
    .core-ring:nth-child(3) {
        width: 130px;
        height: 130px;
        border-radius: 22px;
    }
    
    .marquee-section {
        padding: 24px 0;
    }
    
    .marquee-track {
        gap: 40px;
    }
    
    .marquee-track span {
        font-size: 0.9rem;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .service-card {
        padding: 24px;
    }
    
    .service-card h3 {
        font-size: 1.1rem;
    }
    
    .service-card p {
        font-size: 0.9rem;
    }
    
    .about-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    
    .about-visual {
        height: 220px;
    }
    
    .float-card {
        padding: 10px 14px;
        font-size: 0.8rem;
        gap: 8px;
    }
    
    .card-icon {
        font-size: 1.1rem;
    }
    
    .card-1 {
        top: 10%;
        left: 5%;
    }
    
    .card-2 {
        top: 40%;
        right: 0;
    }
    
    .card-3 {
        bottom: 10%;
        left: 10%;
    }
    
    .stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .stat {
        flex: 1;
        min-width: 100px;
        text-align: center;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .process-step {
        padding: 28px;
    }
    
    .step-number {
        font-size: 2.5rem;
    }
    
    .contact-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px 14px;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 24px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .footer-brand {
        flex-direction: column;
        gap: 8px;
    }
    
    .guarantee-content {
        padding: 36px;
        gap: 32px;
    }
    
    .guarantee-headline {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }
    
    .guarantee-desc {
        font-size: 0.95rem;
    }
    
    .guarantee-features {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

/* Small phones */
@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
    }
    
    .hero {
        padding-top: 100px;
        padding-bottom: 60px;
    }
    
    .hero-tag {
        font-size: 0.75rem;
    }
    
    .hero-title {
        font-size: clamp(1.75rem, 7vw, 2.5rem);
    }
    
    .hero-desc {
        font-size: 0.95rem;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .hero-visual {
        max-width: 220px;
        height: 220px;
        margin-top: 32px;
    }
    
    .core {
        width: 55px;
        height: 55px;
        border-radius: 12px;
    }
    
    .core-ring:nth-child(2) {
        width: 80px;
        height: 80px;
    }
    
    .core-ring:nth-child(3) {
        width: 105px;
        height: 105px;
    }
    
    .hex-grid {
        gap: 8px;
        padding: 18%;
    }
    
    .hex {
        border-radius: 8px;
    }
    
    .section-tag {
        font-size: 0.75rem;
    }
    
    .section-title {
        font-size: clamp(1.6rem, 6vw, 2rem);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: 24px;
    }
    
    .service-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 16px;
    }
    
    .service-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .service-card h3 {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .service-card p {
        font-size: 0.9rem;
    }
    
    .service-tags {
        gap: 6px;
    }
    
    .service-tags li {
        font-size: 0.7rem;
        padding: 4px 10px;
    }
    
    .guarantee-content {
        padding: 24px;
        gap: 24px;
    }
    
    .guarantee-badge {
        width: 64px;
        height: 64px;
        border-radius: 14px;
    }
    
    .guarantee-badge svg {
        width: 32px;
        height: 32px;
    }
    
    .guarantee-text h2 {
        font-size: 0.8rem;
    }
    
    .guarantee-headline {
        font-size: 1.3rem;
    }
    
    .guarantee-desc {
        font-size: 0.9rem;
        margin-bottom: 24px;
    }
    
    .guarantee-features li {
        font-size: 0.85rem;
    }
    
    .about-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }
    
    .about-text {
        font-size: 0.95rem;
    }
    
    .about-visual {
        height: 180px;
    }
    
    .float-card {
        padding: 8px 12px;
        font-size: 0.75rem;
    }
    
    .stats {
        gap: 16px;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .process-step {
        padding: 24px;
    }
    
    .step-number {
        font-size: 2rem;
        margin-bottom: 12px;
    }
    
    .process-step h3 {
        font-size: 1.1rem;
    }
    
    .process-step p {
        font-size: 0.85rem;
    }
    
    .contact-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }
    
    .contact-desc {
        font-size: 0.95rem;
    }
    
    .contact-form {
        gap: 16px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .social-links a {
        width: 36px;
        height: 36px;
    }
    
    .footer {
        padding: 32px var(--container-padding);
    }
    
    .footer-logo {
        font-size: 1.1rem;
    }
    
    .footer-brand p,
    .footer-copy {
        font-size: 0.8rem;
    }
}

/* Touch device optimizations */
@media (hover: none) {
    .service-card:hover,
    .process-step:hover {
        transform: none;
    }
    
    .btn-primary:hover {
        transform: none;
    }
    
    .cursor-glow {
        display: none !important;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .marquee-track {
        animation: none;
    }
}

/* ========================================
   Animations on Scroll
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar glass effect on scroll */
.nav.nav-scrolled {
    background: rgba(4, 8, 18, 0.45); /* transparent dark */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.15);
}


/* Navbar underline only for normal links */
.nav-links a.nav-link {
    position: relative;
    padding-bottom: 6px;
    transition: color var(--transition-fast);
}

.nav-links a.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    background: var(--blue-500); /* Blue underline */
    transition: width 0.25s ease;
}

.nav-links a.nav-link:hover::after {
    width: 100%;
}

/* Let’s Talk button has no underline */
.nav-cta {
    text-decoration: none;
}