/* =====================================================
   ONE PALM MINING LTD - Main Stylesheet
   ===================================================== */

/* CSS Variables / Design Tokens */
:root {
    --color-primary: #1a1a1a;
    --color-primary-light: #2d2d2d;
    --color-secondary: #c9a962;
    --color-secondary-dark: #a88b4a;
    --color-accent: #4a7c59;
    
    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f6;
    --color-bg-dark: #1a1a1a;
    
    --color-text: #1a1a1a;
    --color-text-muted: #6b6b6b;
    --color-text-light: #ffffff;
    
    --color-border: #e5e5e5;
    --color-border-dark: #333333;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

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

p {
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: var(--color-primary);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-light);
    border-color: var(--color-text-light);
}

.btn-outline:hover {
    background-color: var(--color-text-light);
    color: var(--color-primary);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Section Badges */
.section-badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-secondary);
    background-color: rgba(201, 169, 98, 0.1);
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-title {
    margin-bottom: 16px;
    text-wrap: balance;
}

.section-subtitle {
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

/* =====================================================
   HEADER / NAVIGATION
   ===================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
}

.header.scrolled .logo-text,
.header.scrolled .nav-links a {
    color: var(--color-primary);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--color-secondary);
}

.logo-text {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-text-light);
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.nav-links .btn {
    padding: 10px 20px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-light);
    transition: var(--transition);
}

.header.scrolled .mobile-menu-btn span {
    background-color: var(--color-primary);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 10;
    padding: 120px 0 80px;
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-secondary);
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-full);
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    line-height: 1.7;
}

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

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-indicator {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-secondary), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* =====================================================
   STATS SECTION
   ===================================================== */
.stats {
    background-color: var(--color-primary);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    color: var(--color-text-light);
}

.stat-number {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--color-secondary);
    display: inline;
}

.stat-suffix {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-secondary);
}

.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about {
    padding: 120px 0;
    background-color: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text {
    color: var(--color-text-muted);
    font-size: 1.0625rem;
    line-height: 1.8;
}

.about-features {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(201, 169, 98, 0.1);
    color: var(--color-secondary);
    border-radius: var(--radius-md);
}

.feature-content h4 {
    margin-bottom: 4px;
}

.feature-content p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background-color: var(--color-secondary);
    border-radius: var(--radius-md);
    z-index: -1;
}

/* =====================================================
   MISSION SECTION
   ===================================================== */
.mission {
    padding: 120px 0;
    background-color: var(--color-bg-alt);
}

.mission-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.mission-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.objectives h3 {
    margin-bottom: 32px;
    font-size: 1.25rem;
}

.objectives-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.objectives-list li {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.objective-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-weight: 700;
    border-radius: var(--radius-sm);
}

.objective-text {
    font-size: 1rem;
    line-height: 1.6;
    padding-top: 12px;
}

/* =====================================================
   SERVICES SECTION
   ===================================================== */
.services {
    padding: 120px 0;
    background-color: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    padding: 48px 32px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.service-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(201, 169, 98, 0.1);
    color: var(--color-secondary);
    border-radius: var(--radius-lg);
}

.service-card h3 {
    margin-bottom: 16px;
}

.service-card p {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* =====================================================
   PROCESS SECTION
   ===================================================== */
.process {
    padding: 120px 0;
    background-color: var(--color-bg-dark);
}

.process .section-badge {
    background-color: rgba(201, 169, 98, 0.2);
}

.process .section-title {
    color: var(--color-text-light);
}

.process .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 60px;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-border-dark);
}

.process-item {
    position: relative;
    text-align: center;
    flex: 1;
}

.process-number {
    width: 48px;
    height: 48px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-secondary);
    color: var(--color-primary);
    font-weight: 700;
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.process-content h3 {
    color: var(--color-text-light);
    margin-bottom: 8px;
    font-size: 1.125rem;
}

.process-content p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* =====================================================
   VIDEO SECTION
   ===================================================== */
.video-section {
    padding: 120px 0;
    background-color: var(--color-bg-alt);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
}

.video-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 16 / 9;
    background-color: var(--color-primary);
}

.video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.video-overlay:hover {
    background: rgba(0, 0, 0, 0.3);
}

.video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.play-button {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-secondary);
    color: var(--color-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.play-button:hover {
    transform: scale(1.1);
    background-color: var(--color-text-light);
}

.play-text {
    margin-top: 16px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-light);
}

.video-note {
    text-align: center;
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* =====================================================
   CUSTOMERS SECTION
   ===================================================== */
.customers {
    padding: 120px 0;
    background-color: var(--color-bg);
}

.customers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.customer-card {
    padding: 48px 32px;
    text-align: center;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.customer-card:hover {
    background-color: var(--color-primary);
}

.customer-card:hover .customer-icon {
    background-color: var(--color-secondary);
    color: var(--color-primary);
}

.customer-card:hover h3,
.customer-card:hover p {
    color: var(--color-text-light);
}

.customer-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg);
    color: var(--color-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.customer-card h3 {
    margin-bottom: 8px;
    transition: var(--transition);
}

.customer-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 0;
    transition: var(--transition);
}

/* =====================================================
   GALLERY SECTION
   ===================================================== */
.gallery {
    padding: 120px 0;
    background-color: var(--color-bg-alt);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay h4 {
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.gallery-overlay p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact {
    padding: 120px 0;
    background-color: var(--color-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-intro {
    color: var(--color-text-muted);
    font-size: 1.0625rem;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(201, 169, 98, 0.1);
    color: var(--color-secondary);
    border-radius: var(--radius-md);
}

.contact-text h4 {
    margin-bottom: 4px;
}

.contact-text p {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.contact-text a {
    color: var(--color-text-muted);
}

.contact-text a:hover {
    color: var(--color-secondary);
}

.contact-form-wrapper {
    background-color: var(--color-bg-alt);
    padding: 48px;
    border-radius: var(--radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    font-family: var(--font-sans);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-bg);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

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

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background-color: var(--color-bg-dark);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--color-border-dark);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: var(--color-text-light);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-text-light);
    font-size: 1rem;
    margin-bottom: 24px;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-contact li,
.footer-contact a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    padding-top: 40px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* =====================================================
   BACK TO TOP BUTTON
   ===================================================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-secondary);
    color: var(--color-primary);
}

/* =====================================================
   RESPONSIVE STYLES
   ===================================================== */
@media (max-width: 1024px) {
    .about-grid,
    .mission-card,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-image {
        order: -1;
    }
    
    .image-accent {
        display: none;
    }
    
    .services-grid,
    .customers-grid,
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .process-timeline {
        flex-wrap: wrap;
        gap: 40px;
    }
    
    .process-timeline::before {
        display: none;
    }
    
    .process-item {
        flex: 0 0 calc(50% - 20px);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        gap: 32px;
        background-color: var(--color-primary);
        padding: 40px;
        transition: var(--transition);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        color: var(--color-text-light);
        font-size: 1rem;
    }
    
    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .services-grid,
    .customers-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .process-item {
        flex: 0 0 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .about,
    .mission,
    .services,
    .process,
    .video-section,
    .customers,
    .gallery,
    .contact {
        padding: 80px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
}