/* Custom Properties / Variables */
:root {
    /* Colors */
    --clr-bg: #0d1117;          /* Dark Navy / Graphite */
    --clr-bg-alt: #161b22;      /* Slightly lighter for sections */
    --clr-bg-card: #1f242c;     /* Card background */
    --clr-text: #e6edf3;        /* Light text */
    --clr-text-muted: #8b949e;  /* Muted text */
    
    /* Elegant, subdued Gold palette */
    --clr-gold: #aa8c4c;        
    --clr-gold-light: #c8ad71;  
    --clr-gold-dark: #8a6f39;   
    --clr-gold-rgb: 170, 140, 76;
    
    --clr-black: #05070a;       /* Deepest black for footer */
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 5px 15px rgba(var(--clr-gold-rgb), 0.2);
    --shadow-gold-hover: 0 8px 25px rgba(var(--clr-gold-rgb), 0.4);
}

/* Reset & Global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Account for sticky header */
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--clr-gold);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--clr-gold-light);
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Utility Classes */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    color: var(--clr-text);
    margin-bottom: 0.5rem;
}

.title-underline {
    height: 3px;
    width: 60px;
    background-color: var(--clr-gold);
    margin-bottom: 2rem;
}

.title-underline.center {
    margin: 0 auto 3rem auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    font-weight: 700;
    font-family: var(--font-body);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--clr-gold);
    color: var(--clr-bg);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background-color: var(--clr-gold-light);
    color: var(--clr-black);
    box-shadow: var(--shadow-gold-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-gold);
    border-color: var(--clr-gold);
}

.btn-outline:hover {
    background-color: var(--clr-gold);
    color: var(--clr-bg);
    box-shadow: var(--shadow-gold);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 5px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--clr-gold-rgb), 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(var(--clr-gold-rgb), 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(var(--clr-gold-rgb), 0);
    }
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background-color var(--transition-normal), padding var(--transition-normal);
    padding: 1.2rem 0;
}

header.scrolled {
    background-color: rgba(5, 7, 10, 0.95);
    padding: 0.8rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

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

.logo {
    height: 50px;
    width: auto;
    transition: transform var(--transition-normal);
}

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

.main-nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--clr-text);
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--clr-gold);
    transition: width var(--transition-normal);
}

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--clr-gold);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: radial-gradient(circle at 70% 30%, rgba(var(--clr-gold-rgb), 0.05) 0%, transparent 50%),
                var(--clr-bg);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--clr-gold);
    margin-bottom: 0.5rem;
}

.hero-content h2 {
    font-size: 1.5rem;
    font-weight: 400;
    font-family: var(--font-body);
    color: var(--clr-text-muted);
    margin-bottom: 1.5rem;
}

.slogan {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-style: italic;
    color: var(--clr-gold);
    margin-bottom: 2.5rem;
    border-left: 4px solid var(--clr-gold);
    padding-left: 1.5rem;
}

.hero-image img {
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    filter: drop-shadow(0 0 20px rgba(var(--clr-gold-rgb), 0.1));
}

/* About Section */
.about {
    padding: 6rem 0;
    background-color: var(--clr-bg-alt);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    border-radius: 12px;
    box-shadow: var(--shadow-md), 0 0 0 2px rgba(var(--clr-gold-rgb), 0.3);
    transition: transform var(--transition-normal);
}

.about-image img:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md), 0 0 0 2px rgba(var(--clr-gold-rgb), 0.8);
}

.about-content .section-title {
    text-align: left;
    font-size: 2.8rem;
}

.about-content p {
    font-size: 1.1rem;
    color: var(--clr-text);
    margin-bottom: 1.5rem;
}

/* Education & Accordion */
.education {
    padding: 6rem 0;
    background-color: var(--clr-bg);
}

.accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item {
    background-color: var(--clr-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.accordion-item:hover {
    border-color: rgba(var(--clr-gold-rgb), 0.3);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.accordion-header {
    width: 100%;
    padding: 1.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--clr-text);
    text-align: left;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.accordion-header span {
    flex: 1;
    padding-right: 1rem;
}

.accordion-header i {
    color: var(--clr-gold);
    transition: transform var(--transition-normal);
    font-size: 1.2rem;
}

.accordion-item.active .accordion-header {
    color: var(--clr-gold);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.accordion-item.active .accordion-header i {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.accordion-content-inner {
    padding: 1.5rem;
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Services Section */
.services {
    padding: 6rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--clr-bg-card);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--clr-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(var(--clr-gold-rgb), 0.1);
    border-color: rgba(var(--clr-gold-rgb), 0.2);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--clr-gold);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--clr-text);
}

.service-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--clr-text-muted);
}

.service-list li::before {
    content: '\f054';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 3px;
    font-size: 0.8rem;
    color: var(--clr-gold);
}

.badge {
    display: inline-block;
    background-color: rgba(var(--clr-gold-rgb), 0.15);
    color: var(--clr-gold-light);
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.3rem;
    border: 1px solid rgba(var(--clr-gold-rgb), 0.3);
    font-weight: bold;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background-color: var(--clr-bg-alt);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    background-color: var(--clr-bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-info {
    padding: 3rem 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(var(--clr-gold-rgb), 0.1);
    color: var(--clr-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: all var(--transition-normal);
}

.contact-item:hover .contact-icon {
    background-color: var(--clr-gold);
    color: var(--clr-bg);
    transform: scale(1.1);
}

.contact-details h4 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    font-family: var(--font-body);
}

.contact-details p {
    color: var(--clr-text-muted);
}

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

.contact-details a:hover {
    color: var(--clr-gold);
}

.contact-map {
    width: 100%;
    min-height: 400px;
    filter: invert(90%) hue-rotate(180deg) contrast(100%);
}

/* Footer */
footer {
    background-color: var(--clr-black);
    padding-top: 4rem;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo img {
    height: 60px;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.footer-logo p {
    color: var(--clr-text-muted);
    font-size: 0.9rem;
}

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

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--clr-text-muted);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background-color: var(--clr-gold);
    color: var(--clr-bg);
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--clr-text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container, .about-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .slogan {
        border-left: none;
        padding-left: 0;
    }
    
    .about-content .section-title {
        text-align: center;
    }
    
    .title-underline {
        margin-left: auto;
        margin-right: auto;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(13, 17, 23, 0.95);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        text-align: center;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .header-container > .btn {
        display: none; /* Hide header button on small screens */
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.2rem;
    }
    
    .slogan {
        font-size: 1.5rem;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .contact-info {
        padding: 2rem 1.5rem;
    }
    
    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .contact-details {
        word-break: break-word;
    }
    
    .contact-social-buttons {
        align-items: center;
    }
}

/* Floating WhatsApp Button */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    color: white;
    box-shadow: 0 6px 15px rgba(37, 211, 102, 0.4);
}

@media (max-width: 768px) {
    .floating-whatsapp {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.6rem;
    }
}