/* ==========================================================================
   CSS Variables & Theme
   ========================================================================== */
:root {
    /* Colors */
    --clr-primary: #0A2342; /* Deep corporate blue */
    --clr-primary-light: #173b6c;
    --clr-accent: #3A7CA5; /* Light blue accent */
    --clr-accent-light: #e6f0f7;
    --clr-dark: #1E2022;
    --clr-gray: #525C65;
    --clr-gray-light: #F0F4F8;
    --clr-white: #FFFFFF;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --box-shadow: 0 10px 30px rgba(10, 35, 66, 0.08);
    --box-shadow-hover: 0 20px 40px rgba(10, 35, 66, 0.12);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

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

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--clr-accent);
    border-radius: 2px;
}

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

.text-center.section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.bg-light {
    background-color: var(--clr-gray-light);
}

.bg-dark {
    background-color: var(--clr-primary);
    color: var(--clr-white);
}

.bg-dark .section-title {
    color: var(--clr-white);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--clr-primary-light);
    color: var(--clr-white);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(10, 35, 66, 0.2);
}

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
    padding: 1rem 0;
}

.header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

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

.logo {
    height: 75px; /* Adjust based on actual logo */
    object-fit: contain;
    transition: height var(--transition);
}

.header.scrolled .logo {
    height: 55px;
}

.text-logo {
    font-size: 1.8rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--clr-primary);
    white-space: nowrap;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-list {
    display: flex;
    gap: 1rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    white-space: nowrap;
}

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

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--clr-primary);
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 5rem 0; /* Balanced padding for header offset and bottom spacing */
    background: linear-gradient(135deg, var(--clr-primary-light) 0%, var(--clr-primary) 100%);
    color: var(--clr-white);
    overflow: hidden;
}

/* Abstract geometric pattern background */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(255,255,255,0.04) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(255,255,255,0.04) 0%, transparent 50%);
    background-size: cover;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 400px;
    height: 400px;
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 600px;
    height: 600px;
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 50%;
    z-index: 1;
}

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

.hero-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
}

.hero-text {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-video-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0,0,0,0.2);
    display: flex;
    width: 100%;
    max-width: 800px; /* Centered and much larger */
    margin: 0 auto;
}

.hero-video {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 35, 66, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
}

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

.play-btn {
    width: 70px;
    height: 70px;
    background-color: var(--clr-white);
    color: var(--clr-primary);
    border: none;
    border-radius: 50%;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    transition: var(--transition);
    padding-left: 5px;
}

.video-overlay:hover .play-btn {
    transform: scale(1.1);
    background-color: var(--clr-accent-light);
    color: var(--clr-accent);
}

.hero-title {
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    color: var(--clr-white);
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    color: var(--clr-accent-light);
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: 0;
    font-family: var(--font-body);
    max-width: 650px;
}

.hero-desc {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
    max-width: 700px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-img {
    width: 100%;
    height: 100%;
    min-height: 300px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    display: block;
}

.about-text p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--clr-gray);
    border-left: 4px solid var(--clr-accent);
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.service-card {
    flex: 0 1 calc(33.333% - 1rem);
    min-width: 280px;
    background: var(--clr-white);
    padding: 2rem 1.75rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-top: 4px solid transparent;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    box-shadow: var(--box-shadow-hover);
    border-top-color: var(--clr-accent);
}

.service-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.07);
}

.service-icon {
    font-size: 2.2rem;
    color: var(--clr-primary);
    flex-shrink: 0;
}

.service-title {
    font-size: 1.15rem;
    color: var(--clr-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    margin: 0;
    line-height: 1.3;
}

/* Accordion inside card */
.service-accordion {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
}

.svc-item {
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.svc-item:last-child {
    border-bottom: none;
}

.svc-item-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: none;
    border: none;
    padding: 0.75rem 0;
    text-align: left;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--clr-accent);
    font-family: var(--font-body);
    cursor: pointer;
    gap: 0.5rem;
    transition: color 0.2s ease;
    line-height: 1.4;
}

.svc-item-btn:hover {
    color: var(--clr-primary);
}

.svc-item-btn i {
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--clr-accent);
}

.svc-item.active .svc-item-btn i {
    transform: rotate(45deg);
}

.svc-item-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0;
}

.svc-item.active .svc-item-body {
    padding-bottom: 0.75rem;
}

.svc-item-body p {
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--clr-gray);
    margin: 0;
}

/* ==========================================================================
   Differentiators Section
   ========================================================================== */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.diff-block {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.diff-block:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.diff-icon {
    font-size: 2.5rem;
    color: var(--clr-accent);
    margin-bottom: 1rem;
}

.diff-block h4 {
    color: var(--clr-white);
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.diff-block p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

/* ==========================================================================
   Team Section
   ========================================================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 992px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
}

.team-card {
    background: var(--clr-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.team-img-wrapper {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--clr-primary-light);
}

.team-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform 0.5s ease, filter 0.5s ease;
    filter: grayscale(100%);
}

.team-card:hover .team-img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.team-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.team-name {
    font-size: 1.5rem;
    color: var(--clr-primary);
    margin-bottom: 0.5rem;
}

.team-credential {
    font-size: 0.9rem;
    color: var(--clr-accent);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.team-bio {
    font-size: 0.95rem;
    color: var(--clr-gray);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    background: var(--clr-white);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
    overflow: hidden;
}

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

.accordion-header:hover {
    color: var(--clr-accent);
}

.accordion-header i {
    transition: transform 0.3s ease;
}

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

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: var(--clr-white);
}

.accordion-content p {
    padding: 0 1.5rem 1.5rem;
    margin: 0;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--clr-accent);
    font-weight: 500;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.contact-detail-item i {
    font-size: 1.5rem;
    color: var(--clr-primary);
    background: var(--clr-gray-light);
    padding: 0.75rem;
    border-radius: 50%;
}

.contact-form-wrapper {
    background: var(--clr-white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--clr-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #dcdcdc;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 3px rgba(58, 124, 165, 0.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--clr-dark);
    color: rgba(255,255,255,0.7);
    padding: 3rem 0;
    border-top: 4px solid var(--clr-accent);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    height: 40px;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-copy {
    font-size: 0.9rem;
}

.footer-link {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

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

/* ==========================================================================
   Animations & Responsive
   ========================================================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-grid {
        gap: 2rem;
        text-align: center;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-video-wrapper {
        max-width: 650px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background: var(--clr-white);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition);
    }
    
    .nav.open {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero {
        min-height: auto;
        padding-top: 120px;
        padding-bottom: 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-video-wrapper {
        max-width: 450px;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
}

/* ==========================================================================
   Floating WhatsApp
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    z-index: 9999;
    transition: var(--transition);
}

.whatsapp-float img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
}

.logo-link {
    display: inline-flex;
    align-items: center;
    color: var(--clr-primary) !important;
}

.logo-link:hover {
    opacity: 0.9;
}

.text-logo {
    font-family: var(--font-heading);
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--clr-primary) !important;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-text-logo {
    color: var(--clr-accent) !important;
}