/* ========================================
   Nature-Inspired Green Theme
   Portfolio Website - Dhani S. Wibawa
   ======================================== */

:root {
    /* Blue-Green Complementary Palette - Professional & Environmental */
    --primary-green: #2d5016;
    --primary-green-dark: #1b3510;
    --primary-green-light: #4a7c59;
    --accent-blue: #2563eb;
    --accent-blue-dark: #1e3a8a;
    --accent-blue-light: #3b82f6;
    --accent-teal: #0891b2;
    --accent-teal-light: #06b6d4;
    --accent-green: #52b788;
    --accent-green-light: #74c69d;
    --accent-green-lighter: #95d5b2;
    --bg-green-subtle: #f0f9ff;
    --bg-green-light: #e0f2fe;
    --bg-blue-subtle: #eff6ff;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e9ecef;
    --gray: #64748b;
    --dark-gray: #334155;
    --black: #1e293b;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing - Optimized for 1366x768 */
    --section-padding: 2.5rem 0;
    --container-max-width: 1000px;
    
    /* Transitions */
    --transition-smooth: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Shadows - Blue-Green Tones */
    --shadow-sm: 0 2px 4px rgba(37, 99, 235, 0.08);
    --shadow-md: 0 4px 12px rgba(8, 145, 178, 0.12);
    --shadow-lg: 0 8px 24px rgba(45, 80, 22, 0.15);
    --shadow-hover: 0 12px 32px rgba(8, 145, 178, 0.2);
}

/* ========================================
   Email Obfuscation Styling
   ======================================== */
.email-obfuscate {
    /* Placeholder styling while email is being decoded */
    font-family: var(--font-body);
    letter-spacing: 0.05em;
}

#emailLink {
    color: var(--accent-green);
    text-decoration: none;
    transition: var(--transition-smooth);
    font-weight: 500;
}

#emailLink:hover {
    color: var(--primary-green);
    text-decoration: underline;
}

/* ========================================
   Global Styles
   ======================================== */

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

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

body {
    font-family: var(--font-body);
    color: var(--dark-gray);
    line-height: 1.7;
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary-green-dark);
    margin-bottom: 1rem;
}

h1 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h2 { font-size: clamp(1.25rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.25vw, 1.5rem); }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.95rem; }

p {
    margin-bottom: 1rem;
    color: var(--gray);
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--accent-green);
}

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

section {
    padding: var(--section-padding);
    position: relative;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   Buttons - Optimized for 1366x768
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 50px;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-green-dark) 0%, var(--primary-green) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--primary-green);
    border-color: var(--primary-green);
}

.btn-outline:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

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

.btn-light:hover {
    background: var(--bg-green-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Navbar
   ======================================== */

.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green-dark);
    transition: var(--transition-smooth);
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--accent-green);
}

.navbar-logo {
    max-height: 60px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.navbar-brand:hover .navbar-logo {
    transform: scale(1.05);
}

.nav-link {
    color: var(--dark-gray);
    font-weight: 500;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-green);
    background: var(--bg-green-subtle);
}

/* ========================================
   Hero Section - Optimized for 1366x768
   ======================================== */

.hero-section {
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-green-subtle) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
    padding: 2.5rem 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-teal-light) 0%, transparent 70%);
    opacity: 0.2;
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-blue-light) 0%, transparent 70%);
    opacity: 0.15;
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-subtitle {
    color: var(--accent-green);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.hero-title {
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-green-dark) 0%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--gray);
    margin-bottom: 1.5rem;
    max-width: 500px;
}

.hero-image-wrapper {
    position: relative;
    max-width: 380px;
    margin: 0 auto;
}

.hero-image {
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    border: 3px solid transparent;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-blue-light) 50%, var(--accent-teal-light) 100%) border-box;
}

.hero-image img {
    width: 100%;
    height: auto;
    transition: var(--transition-slow);
    display: block;
}

.hero-image:hover img {
    transform: scale(1.05);
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-teal) 0%, transparent 100%);
    opacity: 0.05;
    pointer-events: none;
}

/* ========================================
   Section Headers
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-subtitle {
    color: var(--accent-green);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   Cards
   ======================================== */

.card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border: 1px solid var(--light-gray);
    overflow: hidden;
    height: 100%;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-green-light);
}

.card-img-top {
    height: 180px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.card:hover .card-img-top {
    transform: scale(1.1);
}

.card-body {
    padding: 1.25rem;
}

.card-title {
    font-size: 1.15rem;
    color: var(--primary-green-dark);
    margin-bottom: 0.65rem;
}

.card-text {
    color: var(--gray);
    font-size: 0.9rem;
}

.card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-green-light) 0%, var(--accent-green) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.85rem;
    font-size: 1.35rem;
    color: var(--white);
}

/* ========================================
   Stats Counter
   ======================================== */

.stats-section {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white);
    padding: 3rem 0;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
    color: var(--white);
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--primary-green-dark);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer a {
    color: var(--accent-green-lighter);
}

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

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: var(--accent-green);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Optimized for 1366px-1440px screens (common laptop sizes) */
@media (min-width: 1366px) and (max-width: 1440px) {
    .hero-section {
        min-height: 65vh;
        padding: 2rem 0;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 1.25rem;
    }
    
    .section-header {
        margin-bottom: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
    }
    
    .hero-title {
        margin-bottom: 0.75rem;
    }
    
    .hero-image-wrapper {
        max-width: 350px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 3rem 0;
    }
    
    .hero-section {
        min-height: auto;
        padding: 4rem 0;
    }
    
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .card-img-top {
        height: 180px;
    }
}

@media (max-width: 576px) {
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.text-primary-green { color: var(--primary-green); }
.text-accent-green { color: var(--accent-green); }
.bg-green-subtle { background-color: var(--bg-green-subtle); }
.bg-green-light { background-color: var(--bg-green-light); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.rounded-lg { border-radius: 16px; }
.rounded-xl { border-radius: 20px; }

.transition-smooth { transition: var(--transition-smooth); }
.transition-slow { transition: var(--transition-slow); }