/* ============================================
   Arrow Recycling v2 - Modern Minimal Design
   ============================================ */

/* CSS Variables / Design Tokens */
:root {
    /* Brand Colors */
    --arrow-green: #a8cc3c;
    --arrow-green-dark: #8fb82f;
    --arrow-orange: #f39c12;
    --arrow-orange-dark: #d68910;
    --arrow-blue: #3498db;
    --arrow-blue-dark: #2980b9;

    /* Backgrounds */
    --bg-light: #fafafa;
    --bg-white: #ffffff;
    --bg-dark: #1a1a1a;

    /* Text Colors */
    --text-dark: #1a1a1a;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --text-white: #ffffff;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;

    /* Header */
    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    color: var(--text-muted);
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-white);
    z-index: 1000;
    transition: box-shadow var(--transition-normal);
}

.header.is-scrolled {
    box-shadow: var(--shadow-md);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo img {
    height: 44px;
    width: auto;
}

.nav {
    display: none;
}

.nav-list {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--arrow-green);
    transition: width var(--transition-normal);
}

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

.header-cta {
    display: none;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: #25D366;
    color: var(--text-white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.header-cta:hover {
    background: #20bd5a;
    transform: translateY(-1px);
}

.header-cta svg {
    flex-shrink: 0;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

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

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

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.15;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, transparent 30%, transparent 70%, var(--bg-light) 100%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: var(--space-md);
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto var(--space-xl);
}

.hero-prompt {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--space-md);
}

/* Path Selector Cards */
.path-selector {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    max-width: 900px;
    margin: 0 auto;
}

.path-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-lg);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.path-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.path-card--green:hover {
    border-color: var(--arrow-green);
}

.path-card--orange:hover {
    border-color: var(--arrow-orange);
}

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

.path-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-sm);
}

.path-card--green .path-icon {
    background: rgba(168, 204, 60, 0.15);
    color: var(--arrow-green);
}

.path-card--orange .path-icon {
    background: rgba(243, 156, 18, 0.15);
    color: var(--arrow-orange);
}

.path-card--blue .path-icon {
    background: rgba(52, 152, 219, 0.15);
    color: var(--arrow-blue);
}

.path-title {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.path-desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
    text-align: center;
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--space-3xl) 0;
}

.section--green {
    background: var(--bg-white);
}

.section--orange {
    background: var(--bg-light);
}

.section--blue {
    background: var(--bg-white);
}

.section--light {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
}

.section-tag--green {
    background: rgba(168, 204, 60, 0.15);
    color: var(--arrow-green-dark);
}

.section-tag--orange {
    background: rgba(243, 156, 18, 0.15);
    color: var(--arrow-orange-dark);
}

.section-tag--blue {
    background: rgba(52, 152, 219, 0.15);
    color: var(--arrow-blue-dark);
}

.section-title {
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Materials Grid (Drop-off Section)
   ============================================ */
.materials-grid {
    margin-bottom: var(--space-2xl);
}

.materials-heading,
.process-heading,
.services-heading {
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--text-dark);
}

.materials-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.material-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast);
}

.material-item:hover {
    transform: translateX(4px);
}

.material-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.material-icon--green {
    background: rgba(168, 204, 60, 0.15);
    color: var(--arrow-green);
}

.material-info h4 {
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.material-info p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Process Steps */
.process-steps {
    margin-bottom: var(--space-2xl);
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.step-item {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--arrow-green);
    color: var(--text-white);
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
}

.step-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.step-item p {
    font-size: 0.9375rem;
}

/* Location Card */
.location-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: linear-gradient(135deg, rgba(168, 204, 60, 0.1) 0%, rgba(168, 204, 60, 0.05) 100%);
    border: 1px solid rgba(168, 204, 60, 0.2);
    border-radius: var(--radius-xl);
}

.location-info h3 {
    margin-bottom: var(--space-sm);
}

.location-address,
.location-hours {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
}

.location-address svg,
.location-hours svg {
    flex-shrink: 0;
    color: var(--arrow-green);
    margin-top: 2px;
}

/* ============================================
   Two Column Layout
   ============================================ */
.two-col {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.col-heading {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    color: var(--text-dark);
}

/* Check List */
.check-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-muted);
}

.check-list li svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.check-list--green svg {
    color: var(--arrow-green);
}

.check-list--orange svg {
    color: var(--arrow-orange);
}

.check-list--blue svg {
    color: var(--arrow-blue);
}

/* Services Cards */
.services-cards {
    margin-bottom: var(--space-2xl);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.service-card {
    padding: var(--space-lg);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.service-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

.service-icon--orange {
    background: rgba(243, 156, 18, 0.15);
    color: var(--arrow-orange);
}

.service-card h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.service-card p {
    font-size: 0.9375rem;
}

/* CTA Box */
.cta-box {
    text-align: center;
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
}

.cta-box p {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: var(--space-md);
}

.cta-box--orange {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1) 0%, rgba(243, 156, 18, 0.05) 100%);
    border: 1px solid rgba(243, 156, 18, 0.2);
}

/* Facility Showcase */
.facility-showcase {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.facility-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.facility-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.facility-info h3 {
    margin-bottom: var(--space-sm);
}

.facility-info p {
    margin-bottom: var(--space-lg);
}

/* ============================================
   Stats Strip
   ============================================ */
.stats-strip {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-2xl);
}

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

.stat-number {
    display: block;
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 700;
    color: var(--arrow-green);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* About Content */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

.about-text h2 {
    margin-bottom: var(--space-md);
}

.about-text p {
    margin-bottom: var(--space-sm);
}

.about-images {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.about-images img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn svg {
    flex-shrink: 0;
}

.btn--green {
    background: var(--arrow-green);
    color: var(--text-white);
}

.btn--green:hover {
    background: var(--arrow-green-dark);
    transform: translateY(-2px);
}

.btn--orange {
    background: var(--arrow-orange);
    color: var(--text-white);
}

.btn--orange:hover {
    background: var(--arrow-orange-dark);
    transform: translateY(-2px);
}

.btn--blue {
    background: var(--arrow-blue);
    color: var(--text-white);
}

.btn--blue:hover {
    background: var(--arrow-blue-dark);
    transform: translateY(-2px);
}

.btn--whatsapp {
    background: #25D366;
    color: var(--text-white);
}

.btn--whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-2px);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    height: 48px;
    width: auto;
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    font-size: 0.9375rem;
    color: var(--text-light);
}

.footer h3 {
    font-size: 1rem;
    color: var(--text-white);
    margin-bottom: var(--space-md);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-light);
    font-size: 0.9375rem;
}

.contact-list li svg {
    flex-shrink: 0;
    color: var(--arrow-green);
    margin-top: 2px;
}

.contact-list a {
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.contact-list a:hover {
    color: var(--arrow-green);
}

.hours-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hours-list li {
    display: flex;
    justify-content: space-between;
    font-size: 0.9375rem;
    color: var(--text-light);
}

.hours-list li span:first-child {
    color: var(--text-muted);
}

.footer-cta p {
    font-size: 0.9375rem;
    color: var(--text-light);
    margin-bottom: var(--space-md);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

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

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: var(--text-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    z-index: 900;
    transition: all var(--transition-normal);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Mobile Navigation Overlay
   ============================================ */
@media (max-width: 767px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-white);
        padding: var(--space-lg);
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        z-index: 999;
    }

    .nav.is-open {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: var(--space-md) 0;
        font-size: 1.125rem;
        border-bottom: 1px solid var(--bg-light);
    }

    .nav-link::after {
        display: none;
    }

    body.nav-open {
        overflow: hidden;
    }
}

/* ============================================
   Tablet Breakpoint (768px+)
   ============================================ */
@media (min-width: 768px) {
    .nav {
        display: block;
    }

    .nav-toggle {
        display: none;
    }

    .header-cta {
        display: flex;
    }

    .path-selector {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .location-card {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

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

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .facility-showcase {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }

    .facility-image img {
        height: 320px;
    }

    .stats-strip {
        grid-template-columns: repeat(4, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }

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

    .about-images img {
        height: 180px;
    }

    .about-images img:first-child {
        grid-column: span 2;
        height: 200px;
    }

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

/* ============================================
   Desktop Breakpoint (1024px+)
   ============================================ */
@media (min-width: 1024px) {
    :root {
        --container-padding: 2rem;
    }

    .hero {
        min-height: 100vh;
    }

    .path-card {
        padding: var(--space-xl);
    }

    .materials-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .materials-list .material-item:nth-child(4),
    .materials-list .material-item:nth-child(5) {
        grid-column: span 1;
    }

    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }
}

/* ============================================
   Large Desktop (1200px+)
   ============================================ */
@media (min-width: 1200px) {
    .materials-list {
        grid-template-columns: repeat(5, 1fr);
    }

    .materials-list .material-item:nth-child(4),
    .materials-list .material-item:nth-child(5) {
        grid-column: span 1;
    }
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}