@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   ORGANIC LUXURY – Design System v2
   TrangHerb EcoTech · Premium Visual Upgrade
   "Worth Billions" Edition
   ============================================================ */

/* ── Design Tokens ── */
:root {
    /* Organic Luxury Palette */
    --ol-bg-cream:      #FBF9F2;
    --ol-bg-white:      #FFFFFF;
    --ol-bg-warm:       #F7F5EE;
    --ol-text-charcoal: #1A1A1A;
    --ol-text-body:     inherit;
    --ol-accent-emerald:#059669;
    --ol-accent-gold:   #D4AF37;

    /* Glassmorphism Tokens */
    --ol-glass-bg:      rgba(255, 255, 255, 0.72);
    --ol-glass-blur:    12px;
    --ol-glass-border:  rgba(255, 255, 255, 0.40);
    --ol-glass-shadow:  0 8px 32px rgba(0, 0, 0, 0.05);

    /* Typography Scale */
    --ol-hero-size:     clamp(2.8rem, 5vw, 4.5rem);
    --ol-section-size:  clamp(2rem, 3.5vw, 3rem);
    --ol-hero-weight:   700;
    --ol-hero-spacing:  0.03em;

    /* Motion */
    --ol-ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ol-transition:    all 0.55s var(--ol-ease-out-expo);

    /* Section Spacing */
    --ol-section-gap:   0;
}

/* ── Disable native smooth scroll (Lenis manages it) ── */
html.lenis, html.lenis body {
    scroll-behavior: auto !important;
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

/* ── Body Organic Luxury Background & Font ── */
body {
    background-color: var(--ol-bg-cream);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
}

h1, h2, h3, h4, h5, h6, .section-title, .hero h2 {
    font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
}

/* ── Bypass AOS (AOS conflicts with Lenis scroll, custom IO handles animations instead) ── */
[data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

/* ── Glassmorphism Utility ── */
.glass-card {
    background: var(--ol-glass-bg) !important;
    backdrop-filter: blur(var(--ol-glass-blur));
    -webkit-backdrop-filter: blur(var(--ol-glass-blur));
    border: 1px solid var(--ol-glass-border) !important;
    box-shadow: var(--ol-glass-shadow);
}

/* ================================================================
   TYPOGRAPHY – Oversized & Premium
   ================================================================ */

.hero .col-lg-6 h2,
.hero .section-title {
    font-size: var(--ol-hero-size) !important;
    font-weight: var(--ol-hero-weight) !important;
    letter-spacing: var(--ol-hero-spacing) !important;
    line-height: 1.15 !important;
}

.section-title,
.ecosystem-text h2 {
    font-size: var(--ol-section-size) !important;
    font-weight: 800 !important;
    color: var(--ol-text-charcoal) !important;
    letter-spacing: 0.01em;
}

/* Keep hero/about/team/contact titles WHITE on dark backgrounds */
.hero .section-title,
.hero .col-lg-6 h2,
.hero-about h1,
.hero-contact h1 {
    color: #ffffff !important;
}

#team .section-title {
    color: #ffffff !important;
}

/* ── Section Title Underline ── */
.section-title::after {
    background: linear-gradient(90deg, var(--ol-accent-emerald), var(--ol-accent-gold)) !important;
    height: 4px !important;
    border-radius: 4px !important;
}

/* ================================================================
   SECTION BACKGROUNDS – Subtle Alternation
   Clean, luxurious, no harsh transitions
   ================================================================ */

/* Remove harsh border-bottom lines between sections */
.ecosystem,
.impact,
.activities,
#products.products,
.guide-section,
.technology,
.about-story,
.mission-vision,
.core-values,
.contact-advice {
    border-bottom: none !important;
}

.ecosystem {
    background: var(--ol-bg-cream) !important;
}

.impact {
    background: var(--ol-bg-white) !important;
}

.activities {
    background: var(--ol-bg-cream) !important;
}

#products.products {
    background: var(--ol-bg-white) !important;
}

.guide-section {
    background: var(--ol-bg-cream) !important;
}

.technology {
    background: var(--ol-bg-white) !important;
}

.about-story {
    background: var(--ol-bg-cream) !important;
}

.mission-vision {
    background: var(--ol-bg-white) !important;
}

.core-values {
    background: var(--ol-bg-cream) !important;
}

.contact-advice {
    background: var(--ol-bg-white) !important;
}

/* ── Smooth section transition – soft gradient fade between sections ── */
.ecosystem::before,
.impact::before,
.activities::before,
#products.products::before,
.technology::before,
.about-story::before,
.mission-vision::before,
.core-values::before,
.contact-advice::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, rgba(0,0,0,0.02), transparent);
    pointer-events: none;
    z-index: 1;
}

/* Only apply to sections with position:relative */
.ecosystem,
.impact,
.activities,
.technology,
.about-story,
.mission-vision,
.core-values,
.contact-advice {
    position: relative;
}

/* ================================================================
   GLASSMORPHISM – Cards & Panels
   ================================================================ */

.stat-card {
    background: var(--ol-glass-bg) !important;
    backdrop-filter: blur(var(--ol-glass-blur));
    -webkit-backdrop-filter: blur(var(--ol-glass-blur));
    border: 1px solid rgba(255, 255, 255, 0.45) !important;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

.activity-card {
    background: var(--ol-glass-bg) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.40) !important;
}

.service-card {
    background: var(--ol-glass-bg) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.40) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

/* Keep highlighted service card special */
.service-card.highlighted {
    background: linear-gradient(180deg, #ffffff 0%, #fffdf8 100%) !important;
    border: 2px solid var(--ol-accent-gold) !important;
    backdrop-filter: none;
}

.services-panel {
    background: rgba(255, 255, 255, 0.55) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5) !important;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
}

.contact-form {
    background: var(--ol-glass-bg) !important;
    backdrop-filter: blur(var(--ol-glass-blur));
    -webkit-backdrop-filter: blur(var(--ol-glass-blur));
    border: 1px solid rgba(255, 255, 255, 0.40) !important;
}

/* ================================================================
   BENTO GRID – Impact & Core Values
   ================================================================ */

.bento-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(180px, auto);
}

.bento-item {
    border-radius: 20px;
    overflow: hidden;
    transition: var(--ol-transition);
}

.bento-item:hover {
    transform: translateY(-4px);
}

.bento-span-2 { grid-column: span 2; }
.bento-span-3 { grid-column: span 3; }
.bento-span-row-2 { grid-row: span 2; }

/* ── Bento overrides for Impact stat cards ── */
.impact .row.g-4 {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.impact .row.g-4 > .col-md-3 {
    width: 100% !important;
    max-width: 100% !important;
    flex: none !important;
    padding: 0 !important;
}

.impact .stat-card {
    height: 100%;
    border-radius: 20px;
}

/* ── Bento overrides for Core Values ── */
.core-values .row {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.core-values .row > .col-md-3 {
    width: 100% !important;
    max-width: 100% !important;
    flex: none !important;
    padding: 0 !important;
    margin-bottom: 0 !important;
}

/* ================================================================
   PREMIUM CARD HOVER EFFECTS
   ================================================================ */

.stat-card:hover,
.activity-card:hover,
.service-card:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08) !important;
}

/* ── Team card premium glass overlay ── */
.team-card {
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.team-card:hover {
    box-shadow: 0 20px 50px rgba(5, 150, 105, 0.25);
}

/* ================================================================
   FOOTER – Premium Dark
   ================================================================ */

.footer {
    background: linear-gradient(135deg, #0B132B 0%, #152238 50%, #0a1f18 100%) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, var(--ol-accent-emerald), var(--ol-accent-gold));
    border-radius: 3px;
}

.footer h5 {
    color: rgba(255, 255, 255, 0.92) !important;
    font-size: 0.85rem !important;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700 !important;
}

.footer p,
.footer a {
    color: rgba(255, 255, 255, 0.65) !important;
}

.footer a:hover {
    color: var(--ol-accent-emerald) !important;
}

/* ── Copyright bar ── */
.footer .text-center.mt-4 {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.5rem;
    color: rgba(255, 255, 255, 0.4) !important;
    font-size: 0.85rem;
}

/* ================================================================
   HERO – Premium Polish
   ================================================================ */

.hero {
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* ── Hero image – refined shadow ── */
.hero .col-lg-6 img {
    border-radius: 24px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
}

/* ── Button upgrade ── */
.btn-hero {
    border-radius: 60px;
    padding: 1.1rem 3rem;
    font-size: 1.15rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 8px 30px rgba(5, 150, 105, 0.25);
}

.btn-hero:hover {
    box-shadow: 0 16px 40px rgba(5, 150, 105, 0.35) !important;
}

/* ================================================================
   SCROLL ANIMATION CLASSES – IntersectionObserver-powered
   Elements start hidden, get 'ol-visible' class when scrolled into view
   --stagger-delay CSS variable enables cascading animations
   ================================================================ */

/* ── Slide up ── */
.ol-animate-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.85s var(--ol-ease-out-expo),
                transform 0.85s var(--ol-ease-out-expo);
    transition-delay: var(--stagger-delay, 0s);
}

.ol-animate-up.ol-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Slide from left ── */
.ol-animate-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.85s var(--ol-ease-out-expo),
                transform 0.85s var(--ol-ease-out-expo);
    transition-delay: var(--stagger-delay, 0s);
}

.ol-animate-left.ol-visible {
    opacity: 1;
    transform: translateX(0);
}

/* ── Slide from right ── */
.ol-animate-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.85s var(--ol-ease-out-expo),
                transform 0.85s var(--ol-ease-out-expo);
    transition-delay: var(--stagger-delay, 0s);
}

.ol-animate-right.ol-visible {
    opacity: 1;
    transform: translateX(0);
}

/* ── Scale in ── */
.ol-animate-scale {
    opacity: 0;
    transform: scale(0.88);
    transition: opacity 0.85s var(--ol-ease-out-expo),
                transform 0.85s var(--ol-ease-out-expo);
    transition-delay: var(--stagger-delay, 0s);
}

.ol-animate-scale.ol-visible {
    opacity: 1;
    transform: scale(1);
}

/* ── Legacy compatibility ── */
.ol-reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s var(--ol-ease-out-expo), transform 0.8s var(--ol-ease-out-expo); }
.ol-reveal.revealed { opacity: 1; transform: translateY(0); }
.ol-reveal-left { opacity: 0; transform: translateX(-60px); transition: opacity 0.8s var(--ol-ease-out-expo), transform 0.8s var(--ol-ease-out-expo); }
.ol-reveal-left.revealed { opacity: 1; transform: translateX(0); }
.ol-reveal-right { opacity: 0; transform: translateX(60px); transition: opacity 0.8s var(--ol-ease-out-expo), transform 0.8s var(--ol-ease-out-expo); }
.ol-reveal-right.revealed { opacity: 1; transform: translateX(0); }
.ol-reveal-scale { opacity: 0; transform: scale(0.85); transition: opacity 0.8s var(--ol-ease-out-expo), transform 0.8s var(--ol-ease-out-expo); }
.ol-reveal-scale.revealed { opacity: 1; transform: scale(1); }

/* ── Tilt-ready ── */
.ol-tilt {
    transition: transform 0.15s ease-out;
    will-change: transform;
}

/* ── Liquid Button ── */
.ol-liquid-btn {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.ol-liquid-btn .liquid-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    transform: scale(0);
    animation: ol-ripple-expand 0.6s ease-out forwards;
    pointer-events: none;
    z-index: 0;
}

@keyframes ol-ripple-expand {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ── Magnetic hover ── */
.ol-magnetic {
    transition: transform 0.3s var(--ol-ease-out-expo);
    will-change: transform;
}

/* ── Icon hover animation ── */
.bi:hover,
.nav-link i:hover,
.contact-section .d-flex a i:hover {
    animation: ol-icon-shake 0.4s ease-in-out;
}

@keyframes ol-icon-shake {
    0%, 100% { transform: rotate(0deg); }
    25%      { transform: rotate(-8deg); }
    75%      { transform: rotate(8deg); }
}

/* ================================================================
   WEBGL CANVAS LAYERS
   ================================================================ */

#webgl-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

#cursor-trail {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    pointer-events: none;
}

/* ================================================================
   PREMIUM POLISH – Additional Details
   ================================================================ */

/* ── Smooth image radius across site ── */
.activity-figure {
    border-radius: 18px;
    overflow: hidden;
}

.activity-figure img {
    border-radius: 0;
}

/* ── Contact form inputs – premium feel ── */
.contact-form input,
.contact-form textarea {
    border-radius: 12px !important;
    border: 1.5px solid rgba(0, 0, 0, 0.08) !important;
    padding: 0.85rem 1.2rem !important;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: rgba(255, 255, 255, 0.8) !important;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--ol-accent-emerald) !important;
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.12) !important;
    outline: none;
}

/* ── Guide section PDF viewer ── */
.guide-section {
    padding: 60px 0 !important;
}

/* ── Technology section polish ── */
.technology {
    padding: 80px 0;
}

.technology img {
    border-radius: 18px;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.10);
    transition: var(--ol-transition);
}

.technology img:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.14);
    transform: translateY(-2px);
}

/* ── About page premium details ── */
.hero-about {
    position: relative;
    z-index: 1;
}

.about-story {
    padding: 80px 0;
}

/* ── Core values – premium cards ── */
.core-values .col-md-3 {
    text-align: center;
}

.core-values .col-md-3 p {
    background: var(--ol-glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: var(--ol-transition);
    height: 100%;
}

.core-values .col-md-3 p:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

/* ── Chatbot button elevation ── */
.chatbot-toggle {
    z-index: 9990 !important;
}

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

@media (max-width: 992px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-span-3 {
        grid-column: span 2;
    }

    .impact .row.g-4 {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .core-values .row {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 576px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }

    .bento-span-2,
    .bento-span-3 {
        grid-column: span 1;
    }

    .impact .row.g-4 {
        grid-template-columns: 1fr !important;
    }

    .core-values .row {
        grid-template-columns: 1fr !important;
    }

    :root {
        --ol-hero-size: 2.4rem;
        --ol-section-size: 1.8rem;
    }
}

/* ── Reduced Motion preference ── */
@media (prefers-reduced-motion: reduce) {
    .ol-reveal,
    .ol-reveal-left,
    .ol-reveal-right,
    .ol-reveal-scale,
    .ol-animate-up,
    .ol-animate-left,
    .ol-animate-right,
    .ol-animate-scale {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    .ol-liquid-btn .liquid-ripple {
        animation: none !important;
    }

    #cursor-trail,
    #webgl-bg {
        display: none !important;
    }
}