/* ================================================================
   Kinetikum Indo Solusi — Corporate Website
   Design: Modern, clean, professional
   Colors: Deep navy + gradient accents
   ================================================================ */

:root {
    --navy: #0F172A;
    --navy-light: #1E293B;
    --navy-mid: #334155;
    --slate: #64748B;
    --slate-light: #94A3B8;
    --silver: #CBD5E1;
    --pearl: #F1F5F9;
    --white: #FFFFFF;
    --blue: #2563EB;
    --blue-dark: #1D4ED8;
    --purple: #7C3AED;
    --green: #059669;
    --red: #DC2626;
    --orange: #EA580C;
    --gradient: linear-gradient(135deg, #2563EB, #7C3AED);
    --gradient-2: linear-gradient(135deg, #059669, #2563EB);
    --shadow-sm: 0 1px 3px rgba(15,23,42,0.08);
    --shadow-md: 0 4px 20px rgba(15,23,42,0.1);
    --shadow-lg: 0 12px 40px rgba(15,23,42,0.12);
    --shadow-xl: 0 20px 60px rgba(15,23,42,0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-full: 999px;
    --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--navy);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.4rem; }

a { color: var(--blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--blue-dark); }

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

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ----------------------------------------------------------------
   Buttons
   ---------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.4;
}
.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37,99,235,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,99,235,0.4);
    color: var(--white);
}
.btn-ghost {
    background: transparent;
    color: var(--navy);
    border: 2px solid var(--silver);
}
.btn-ghost:hover {
    border-color: var(--blue);
    color: var(--blue);
}
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

/* ----------------------------------------------------------------
   Navigation
   ---------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(203,213,225,0.4);
    transition: var(--transition);
}
.nav.scrolled {
    background: rgba(255,255,255,0.95);
    box-shadow: var(--shadow-sm);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--navy);
}
.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient);
    color: var(--white);
    font-weight: 800;
    font-size: 1.2rem;
    border-radius: 10px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-brand { font-weight: 800; font-size: 1rem; letter-spacing: 1px; }
.logo-sub { font-size: 0.7rem; color: var(--slate); font-weight: 500; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-links a {
    color: var(--navy-mid);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
}
.nav-links a:hover { color: var(--blue); }
.nav-cta {
    background: var(--gradient) !important;
    color: var(--white) !important;
    padding: 10px 24px !important;
    border-radius: var(--radius-full) !important;
    font-weight: 600 !important;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.3); }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--navy);
    padding: 8px;
}

/* ----------------------------------------------------------------
   Hero
   ---------------------------------------------------------------- */
.hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
    background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
}
.hero-shape-1 { width: 600px; height: 600px; background: var(--blue); top: -200px; right: -100px; }
.hero-shape-2 { width: 400px; height: 400px; background: var(--purple); bottom: -100px; left: -50px; }
.hero-shape-3 { width: 300px; height: 300px; background: var(--green); top: 50%; left: 50%; }

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37,99,235,0.08);
    color: var(--blue);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}
.hero-content h1 { margin-bottom: 20px; }
.hero-desc {
    font-size: 1.15rem;
    color: var(--slate);
    margin-bottom: 36px;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual {
    position: relative;
    height: 420px;
}
.hero-card {
    position: absolute;
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(203,213,225,0.3);
    animation: float 6s ease-in-out infinite;
    cursor: default;
    transition: var(--transition);
}
.hero-card:hover { transform: translateY(-4px) scale(1.03); box-shadow: var(--shadow-xl); }
.hero-card-1 { top: 20px; left: 40px; animation-delay: 0s; }
.hero-card-2 { top: 120px; right: 20px; animation-delay: 1.5s; }
.hero-card-3 { top: 230px; left: 20px; animation-delay: 3s; }
.hero-card-4 { top: 330px; right: 40px; animation-delay: 4.5s; }

.hc-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    flex-shrink: 0;
}
.hc-title { display: block; font-weight: 700; font-size: 0.95rem; }
.hc-sub { display: block; font-size: 0.8rem; color: var(--slate); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ----------------------------------------------------------------
   Stats
   ---------------------------------------------------------------- */
.stats {
    background: var(--navy);
    padding: 48px 0;
    position: relative;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}
.stat-value {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--white);
}
.stat-plus {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--blue);
}
.stat-label {
    display: block;
    color: var(--slate-light);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* ----------------------------------------------------------------
   Section Headers
   ---------------------------------------------------------------- */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}
.section-tag {
    display: inline-block;
    background: rgba(37,99,235,0.08);
    color: var(--blue);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.section-header p {
    color: var(--slate);
    font-size: 1.1rem;
    margin-top: 12px;
}

/* ----------------------------------------------------------------
   Products
   ---------------------------------------------------------------- */
.products {
    padding: 100px 0;
    background: var(--pearl);
}
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid rgba(203,213,225,0.5);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.product-card:hover::before { opacity: 1; }

.product-card[data-color="#2563EB"]:hover::before { background: #2563EB; }
.product-card[data-color="#7C3AED"]:hover::before { background: #7C3AED; }
.product-card[data-color="#059669"]:hover::before { background: #059669; }
.product-card[data-color="#DC2626"]:hover::before { background: #DC2626; }

.pc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.pc-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.4rem;
}
.pc-badge {
    background: rgba(37,99,235,0.1);
    color: var(--blue);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.pc-badge-new {
    background: rgba(124,58,237,0.1);
    color: var(--purple);
}

.product-card h3 { margin-bottom: 4px; font-size: 1.35rem; }
.pc-tagline { color: var(--slate); font-size: 0.9rem; margin-bottom: 12px; }
.pc-desc { color: var(--navy-mid); font-size: 0.95rem; margin-bottom: 20px; }

.pc-features {
    list-style: none;
    margin-bottom: 24px;
}
.pc-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
    font-size: 0.9rem;
    color: var(--navy-mid);
}
.pc-features i { color: var(--green); font-size: 0.85rem; }

.pc-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.95rem;
}
.pc-link:hover i { transform: translateX(4px); }
.pc-link i { transition: var(--transition); }

/* ----------------------------------------------------------------
   About
   ---------------------------------------------------------------- */
.about { padding: 100px 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-content .section-tag { margin-bottom: 16px; }
.about-content h2 { margin-bottom: 20px; }
.about-lead {
    font-size: 1.15rem;
    color: var(--navy-mid);
    margin-bottom: 16px;
    font-weight: 500;
}
.about-content p { color: var(--slate); margin-bottom: 16px; }

.about-pillars { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.pillar {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--pearl);
    border-radius: var(--radius);
    transition: var(--transition);
}
.pillar:hover { background: rgba(37,99,235,0.06); }
.pillar-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.pillar strong { display: block; font-size: 0.95rem; }
.pillar span { font-size: 0.85rem; color: var(--slate); }

.about-visual {
    display: grid;
    gap: 20px;
}
.av-card {
    background: var(--pearl);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid rgba(203,213,225,0.3);
    transition: var(--transition);
}
.av-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.av-card i { font-size: 1.6rem; color: var(--blue); margin-bottom: 12px; display: block; }
.av-card span { display: block; font-weight: 700; font-size: 1.05rem; margin-bottom: 8px; }
.av-card p { color: var(--slate); font-size: 0.9rem; }

.av-card-1 { border-left: 4px solid var(--blue); }
.av-card-2 { border-left: 4px solid var(--purple); }
.av-card-3 { border-left: 4px solid var(--green); }

/* ----------------------------------------------------------------
   Testimonials
   ---------------------------------------------------------------- */
.clients { padding: 100px 0; background: var(--pearl); }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid rgba(203,213,225,0.4);
    transition: var(--transition);
}
.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.tc-quote {
    color: var(--blue);
    font-size: 2rem;
    margin-bottom: 12px;
    opacity: 0.3;
}
.tc-text {
    color: var(--navy-mid);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}
.tc-author {
    display: flex;
    align-items: center;
    gap: 14px;
}
.tc-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}
.tc-author strong { display: block; font-size: 0.95rem; }
.tc-author span { display: block; font-size: 0.8rem; color: var(--slate); }

/* ----------------------------------------------------------------
   Contact
   ---------------------------------------------------------------- */
.contact { padding: 100px 0; }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-info .section-tag { margin-bottom: 16px; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { color: var(--slate); margin-bottom: 32px; }

.contact-details { display: flex; flex-direction: column; gap: 20px; margin-bottom: 28px; }
.cd-item { display: flex; gap: 14px; align-items: start; }
.cd-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(37,99,235,0.08);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.cd-item strong { display: block; font-size: 0.9rem; margin-bottom: 2px; }
.cd-item span, .cd-item a { font-size: 0.9rem; color: var(--slate); line-height: 1.5; }
.cd-item a:hover { color: var(--blue); }

.contact-social { display: flex; gap: 12px; }
.contact-social a {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--pearl);
    color: var(--navy-mid);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}
.contact-social a:hover { background: var(--gradient); color: var(--white); }

.contact-form-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(203,213,225,0.3);
}
.contact-form-wrap h3 { margin-bottom: 24px; }

.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--navy-mid);
}
.required { color: var(--red); }
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--silver);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--navy);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--slate-light); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-result {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
}
.form-result.success {
    background: rgba(5,150,105,0.08);
    color: var(--green);
    border: 1px solid rgba(5,150,105,0.2);
}
.form-result.error {
    background: rgba(220,38,38,0.08);
    color: var(--red);
    border: 1px solid rgba(220,38,38,0.2);
}

/* ----------------------------------------------------------------
   Footer
   ---------------------------------------------------------------- */
.footer {
    background: var(--navy);
    padding: 60px 0 32px;
    color: var(--slate-light);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(100,116,139,0.2);
}
.footer-brand p { margin-top: 16px; font-size: 0.9rem; color: var(--slate); max-width: 300px; }
.footer-brand .nav-logo { color: var(--white); }
.footer-brand .logo-sub { color: var(--slate-light); }

.footer-links h4 {
    color: var(--white);
    font-size: 0.95rem;
    margin-bottom: 16px;
}
.footer-links a {
    display: block;
    color: var(--slate);
    font-size: 0.9rem;
    padding: 5px 0;
    text-decoration: none;
}
.footer-links a:hover { color: var(--white); }

.footer-bottom {
    padding-top: 24px;
    text-align: center;
}
.footer-bottom p { font-size: 0.85rem; color: var(--slate); }

/* ----------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------- */
@media (max-width: 960px) {
    .hero .container { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .hero { padding: 120px 0 80px; text-align: center; }
    .hero-actions { justify-content: center; }
    .hero-badge { justify-content: center; }

    .products-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 640px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 20px 24px;
        gap: 16px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--silver);
    }
    .nav-toggle { display: block; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .stat-value { font-size: 1.8rem; }

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

    .hero { padding: 100px 0 60px; }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }

    .product-card { padding: 28px; }
    .contact-form-wrap { padding: 28px; }
}

/* ----------------------------------------------------------------
   Animations
   ---------------------------------------------------------------- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading spinner for form submit */
.btn-loading {
    pointer-events: none;
    opacity: 0.7;
}
.btn-loading::after {
    content: '';
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }