/* ============================================
   CHROMEPOWER INTERNATIONAL WEBSITE
   Main Stylesheet
   ============================================ */

/* ---- CSS VARIABLES (Color Palette) ---- */
:root {
    --color-primary: #003D5C;
    --color-secondary: #00A3B8;
    --color-slate: #34495E;
    --color-light: #F7F9FB;
    --color-accent: #FF6B35;
    --color-success: #27AE60;
    --color-white: #FFFFFF;
    --color-dark: #1A1A1A;
    --color-border: #E8EEF3;
    
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
    
    --transition: all 0.3s ease;
}

/* ---- GLOBAL STYLES ---- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-slate);
    line-height: 1.6;
    background-color: var(--color-light);
}

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

h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.75rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.8;
}

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

a:hover {
    color: var(--color-primary);
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: #E85A2A;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
}

.btn-outline:hover {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

/* ---- CONTAINER & LAYOUT ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 2rem;
}

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

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

.section-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* ---- GRID ---- */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (max-width: 768px) {
    .grid-2, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ---- CARDS ---- */
.card {
    background-color: var(--color-white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--color-secondary);
}

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

.card-light {
    background-color: var(--color-light);
}

.card-featured {
    overflow: hidden;
    border-left: none;
}

.card-featured-header {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
}

.card-featured-content {
    padding: 3rem;
}

/* ---- HEADER / NAVIGATION ---- */
header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-slate);
    font-weight: 500;
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 1rem;
        padding: 2rem;
        background-color: var(--color-white);
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .hamburger {
        display: flex;
    }
}

/* ---- HERO SECTION ---- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    text-align: center;
    color: var(--color-white);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 61, 92, 0.85) 0%, rgba(0, 163, 184, 0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 2rem;
}

.hero h1 {
    color: var(--color-white);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-white);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}

/* ---- FEATURES / STATS SECTION ---- */
.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--color-white);
}

/* ---- SERVICE CARDS ---- */
.service-card {
    background-color: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-card-header {
    height: 250px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.service-card-content {
    padding: 2.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.75rem;
}

.service-list {
    list-style: none;
    margin: 1.5rem 0;
}

.service-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--color-slate);
}

.service-list li::before {
    content: '✓';
    color: var(--color-secondary);
    font-weight: bold;
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ---- CALL-TO-ACTION SECTION ---- */
.cta-section {
    text-align: center;
    padding: 5rem 2rem;
}

.cta-section h2 {
    margin-bottom: 1.5rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ---- FOOTER ---- */
footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-column h4 {
    color: var(--color-white);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.5rem;
    opacity: 0.85;
}

.footer-column a {
    color: var(--color-white);
}

.footer-column a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 163, 184, 0.3);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* ---- UTILITY CLASSES ---- */
.text-center {
    text-align: center;
}

.text-white {
    color: var(--color-white);
}

.text-primary {
    color: var(--color-primary);
}

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

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.px-1 { padding: 0 0.5rem; }
.px-2 { padding: 0 1rem; }
.px-3 { padding: 0 1.5rem; }

.py-1 { padding: 0.5rem 0; }
.py-2 { padding: 1rem 0; }
.py-3 { padding: 1.5rem 0; }

/* ---- ANIMATIONS ---- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.75rem;
    }
    
    h2 {
        font-size: 2.25rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 3rem 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .container {
        padding: 0 1rem;
    }
}