/* ============================================================
   PUSPA AC — Landing Page Styles
   Design System: "Atmospheric Precision"
   Colors: Ocean Blue / Charcoal / Slate
   Typography: Manrope (headlines) + Inter (body)
   ============================================================ */

/* ---------- CSS CUSTOM PROPERTIES ---------- */
:root {
    --charcoal: #333333;
    --ocean-blue: #457B9D;
    --ocean-blue-dark: #1D3557;
    --ocean-blue-deep: #162a47;
    --slate-bg: #F1F5F9;
    --slate-border: #E2E8F0;
    --white: #FFFFFF;
    --on-surface-variant: #64748B;
    --star-gold: #F59E0B;

    --font-headline: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;

    --max-w: 1200px;
    --nav-h: 72px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-h);
}

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

::selection {
    background-color: var(--ocean-blue);
    color: var(--white);
}

h1, h2, h3, h4 {
    font-family: var(--font-headline);
    font-weight: 700;
    line-height: 1.15;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ---------- UTILITY ---------- */
.text-accent {
    color: var(--ocean-blue);
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* ---------- ANIMATIONS ---------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(32px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.animate-fade-in {
    animation: fadeIn 0.8s var(--ease-out) both;
}

.animate-slide-up {
    animation: slideUp 0.8s var(--ease-out) both;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }

/* ---------- NAVBAR ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--slate-border);
    transition: all 0.4s var(--ease-out);
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: var(--nav-h);
}

.logo {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--ocean-blue-dark);
    transition: color 0.3s;
}

.logo:hover {
    color: var(--ocean-blue);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--on-surface-variant);
    padding: 0.25rem 0;
    position: relative;
    transition: color 0.3s;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--ocean-blue);
    transition: width 0.3s var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
    color: var(--ocean-blue-dark);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ocean-blue-dark);
    transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 1rem 2rem 2rem;
    gap: 0.5rem;
    border-top: 1px solid var(--slate-border);
}

.mobile-menu.open {
    display: flex;
}

.mobile-link {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--on-surface-variant);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--slate-border);
    transition: color 0.3s;
}

.mobile-link:hover {
    color: var(--ocean-blue-dark);
}

.btn-mobile-cta {
    margin-top: 0.5rem;
    width: 100%;
    text-align: center;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    border: none;
    transition: all 0.35s var(--ease-out);
    white-space: nowrap;
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-primary {
    background: var(--ocean-blue-dark);
    color: var(--white);
    padding: 0.875rem 2rem;
}

.btn-primary:hover {
    background: var(--ocean-blue);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(29, 53, 87, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--charcoal);
    border: 1px solid var(--slate-border);
    padding: 0.875rem 2rem;
}

.btn-outline:hover {
    background: var(--slate-bg);
    border-color: var(--ocean-blue);
    color: var(--ocean-blue-dark);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 0.8125rem;
}

.btn-nav {
    padding: 0.75rem 1.5rem;
}

/* ---------- HERO ---------- */
.hero {
    padding: calc(var(--nav-h) + 4rem) 2rem 5rem;
    background: var(--white);
    border-bottom: 1px solid var(--slate-border);
    overflow: hidden;
}

.hero-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 1rem;
    background: var(--slate-bg);
    border: 1px solid var(--slate-border);
    color: var(--ocean-blue-dark);
    font-size: 0.625rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.badge-icon {
    font-size: 1rem;
    color: var(--ocean-blue);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    color: var(--charcoal);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Hero Image */
.hero-image-wrapper {
    position: relative;
}

.hero-image-frame {
    position: relative;
    background: var(--slate-bg);
    padding: 0.75rem;
    border: 1px solid var(--slate-border);
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.6s var(--ease-out);
}

.hero-image-wrapper:hover .hero-image {
    filter: grayscale(0%);
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        transparent 60%,
        rgba(29, 53, 87, 0.15) 100%
    );
    pointer-events: none;
}

.certified-badge {
    position: absolute;
    bottom: -1.25rem;
    left: -1.25rem;
    background: var(--ocean-blue-dark);
    padding: 1.25rem 1.5rem;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 4px solid var(--white);
    box-shadow: 0 12px 40px rgba(29, 53, 87, 0.3);
    animation: float 4s ease-in-out infinite;
}

.certified-icon {
    font-size: 2rem;
}

.certified-title {
    font-size: 0.625rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.certified-sub {
    font-size: 0.5625rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---------- SECTIONS COMMON ---------- */
.section-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 3rem;
    padding-left: 2rem;
    border-left: 4px solid var(--ocean-blue);
}

.section-header-center {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--charcoal);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--on-surface-variant);
    max-width: 640px;
}

.section-header-center .section-subtitle {
    margin: 0 auto;
}

.explore-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.6875rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ocean-blue-dark);
    white-space: nowrap;
    transition: gap 0.3s var(--ease-out);
}

.explore-link:hover {
    gap: 0.75rem;
}

.explore-arrow {
    font-size: 0.875rem;
    transition: transform 0.3s var(--ease-out);
}

.explore-link:hover .explore-arrow {
    transform: translateX(4px);
}

/* ---------- SERVICES ---------- */
.services {
    padding: 5rem 0;
    background: var(--slate-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--slate-border);
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    border-right: 1px solid var(--slate-border);
    transition: all 0.35s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--ocean-blue-dark), var(--ocean-blue));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:last-child {
    border-right: none;
}

.service-card:hover {
    background: var(--slate-bg);
}

.service-card-body {
    flex: 1;
    margin-bottom: 2rem;
}

.service-icon {
    font-size: 2.25rem;
    color: var(--ocean-blue);
    margin-bottom: 1.5rem;
    display: block;
    transition: transform 0.4s var(--ease-spring);
}

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

.service-title {
    font-size: 1.125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--charcoal);
    margin-bottom: 1rem;
}

.service-desc {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    line-height: 1.65;
}

.service-price {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--slate-border);
    font-size: 0.6875rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ocean-blue-dark);
}

/* ---------- STATS ---------- */
.stats {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--ocean-blue-dark), var(--ocean-blue-deep));
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(69, 123, 157, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.stats-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 0;
}

.stat-item {
    text-align: center;
    padding: 0 1.5rem;
}

.stat-number {
    font-family: var(--font-headline);
    font-size: clamp(2.5rem, 4vw, 3.25rem);
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.625rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    opacity: 0.6;
}

.stat-divider {
    width: 1px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
}

/* ---------- TESTIMONIALS ---------- */
.testimonials {
    padding: 5rem 0;
    background: var(--white);
    border-top: 1px solid var(--slate-border);
    border-bottom: 1px solid var(--slate-border);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--slate-border);
}

.testimonial-card {
    padding: 2.5rem;
    border-right: 1px solid var(--slate-border);
    transition: background 0.35s;
}

.testimonial-card:last-child {
    border-right: none;
}

.testimonial-card:hover {
    background: var(--slate-bg);
}

.stars {
    display: flex;
    gap: 0.125rem;
    margin-bottom: 1.5rem;
}

.star {
    font-size: 1rem;
    color: var(--star-gold);
    font-variation-settings: 'FILL' 1;
}

.testimonial-text {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--slate-bg);
}

.author-avatar {
    width: 40px;
    height: 40px;
    background: var(--slate-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--ocean-blue-dark);
    flex-shrink: 0;
}

.author-name {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--charcoal);
}

.author-role {
    font-size: 0.5625rem;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* ---------- CTA ---------- */
.cta-section {
    padding: 5rem 0;
    background: var(--slate-bg);
}

.cta-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--slate-border);
    padding: 4rem 3rem;
    text-align: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 200px;
    background: radial-gradient(ellipse, rgba(69, 123, 157, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.cta-title {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--charcoal);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: 1.5rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.2;
}

.cta-subtitle {
    font-size: 1.0625rem;
    color: var(--on-surface-variant);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 0;
}

.btn-cta-wa {
    background: var(--ocean-blue);
    color: var(--white);
    padding: 1.25rem 2.5rem;
    font-weight: 700;
    font-size: 0.8125rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.btn-cta-wa:hover {
    background: var(--ocean-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(69, 123, 157, 0.3);
}

.btn-cta-call {
    background: var(--ocean-blue-dark);
    color: var(--white);
    padding: 1.25rem 2.5rem;
    font-weight: 700;
    font-size: 0.8125rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.btn-cta-call:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* ---------- FOOTER ---------- */
.footer {
    background: var(--charcoal);
    color: var(--white);
    padding: 5rem 2rem;
}

.footer-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 3rem;
}

.footer-logo {
    font-family: var(--font-headline);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.footer-tagline {
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.5;
    line-height: 2;
}

.footer-col-title {
    font-size: 0.6875rem;
    font-weight: 800;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.4;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0.7;
    transition: all 0.3s;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--ocean-blue);
}

.footer-address {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0.7;
    line-height: 1.8;
}

/* ---------- FAB ---------- */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 90;
    width: 56px;
    height: 56px;
    background: var(--ocean-blue-dark);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(29, 53, 87, 0.35);
    transition: all 0.35s var(--ease-out);
    opacity: 0;
    transform: scale(0.8) translateY(20px);
}

.fab.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.fab:hover {
    background: var(--ocean-blue);
    transform: scale(1.08) translateY(-4px);
    box-shadow: 0 12px 32px rgba(29, 53, 87, 0.45);
}

.fab-icon {
    font-size: 1.5rem;
}

/* ---------- SCROLL REVEAL ---------- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-image {
        height: 400px;
    }

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

    .service-card {
        border-bottom: 1px solid var(--slate-border);
    }

    .service-card:nth-child(2) {
        border-right: none;
    }

    .stats-inner {
        grid-template-columns: 1fr auto 1fr;
        gap: 2rem;
        row-gap: 2.5rem;
    }

    .stat-divider:nth-child(6) {
        display: none;
    }

    .stat-item:last-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .btn-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding: calc(var(--nav-h) + 2rem) 1.25rem 3rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-image {
        height: 320px;
    }

    .certified-badge {
        bottom: -0.75rem;
        left: -0.5rem;
        padding: 0.875rem 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .services {
        padding: 3rem 0;
    }

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

    .service-card {
        border-right: none;
    }

    .stats-inner {
        grid-template-columns: 1fr auto 1fr;
    }

    .stat-divider:nth-child(4) {
        display: none;
    }

    .stat-item:nth-child(5),
    .stat-item:nth-child(7) {
        grid-column: auto;
    }

    .testimonials {
        padding: 3rem 0;
    }

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

    .testimonial-card {
        border-right: none;
        border-bottom: 1px solid var(--slate-border);
    }

    .testimonial-card:last-child {
        border-bottom: none;
    }

    .cta-section {
        padding: 3rem 0;
    }

    .cta-card {
        padding: 2.5rem 1.5rem;
    }

    .cta-actions {
        flex-direction: column;
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 480px) {
    .stats-inner {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
        margin: 0 auto;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }
}