/* 
  Docentra Theme Styles 
  Color Palette:
  Primary Blue: #1E73BE
  Accent Green: #4CAF50 
  Deep Navy: #1C3F7A
  White: #FFFFFF 
*/

:root {
    --primary-blue: #1E73BE;
    --primary-blue-hover: #1962A3;
    --accent-green: #4CAF50;
    --accent-green-hover: #43A047;
    --deep-navy: #1C3F7A;
    --white: #FFFFFF;
    --bg-light: #F8FAFC;
    --text-dark: #334155;
    --text-light: #64748B;
    --border-color: #E2E8F0;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-glow: 0 10px 25px -5px rgba(30, 115, 190, 0.3);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--deep-navy);
    font-weight: 600;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Base Components */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-blue-hover);
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.btn-accent {
    background-color: var(--accent-green);
    color: var(--white);
}

.btn-accent:hover {
    background-color: var(--accent-green-hover);
    color: var(--white);
    box-shadow: 0 10px 25px -5px rgba(76, 175, 80, 0.3);
}

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

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

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

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.brand-logo {
    height: 48px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-list a {
    color: var(--text-dark);
    font-weight: 500;
}

.nav-list a:hover {
    color: var(--primary-blue);
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-menu span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--deep-navy);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger-menu.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

main {
    margin-top: 80px;
}

/* Utility Classes */
.text-center { text-align: center; }
.mb-5 { margin-bottom: 3rem; }
.bg-light { background-color: var(--bg-light); }
.section { padding: 100px 0; }
.highlight { color: var(--primary-blue); }
.highlight-green { color: var(--accent-green); }
.lead-text { font-size: 1.2rem; color: var(--text-light); margin-bottom: 20px; }
.section-badge { display: inline-block; padding: 6px 12px; background-color: rgba(30, 115, 190, 0.1); color: var(--primary-blue); border-radius: 20px; font-size: 0.85rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 1px; }

/* Hero Slider */
.hero {
    position: relative;
    height: calc(100vh - 80px);
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4f8 0%, #e0eaf3 100%);
}

.slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease-in-out, visibility 0.8s;
    display: flex;
    align-items: center;
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    padding-bottom: 80px; /* Space for controls */
}

.slide-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.slide-text p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 500px;
}

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

.slide-image {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.slide-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.5);
}

.slider-controls {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 10;
}

.slider-btn {
    background: rgba(255,255,255,0.8);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: var(--transition);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.slider-btn:hover {
    background: var(--white);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.slider-dots {
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0,0,0,0.2);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-blue);
    width: 24px;
    border-radius: 6px;
}

/* Trust / Intro Sections */
.intro-container {
    max-width: 800px;
    text-align: center;
}

.intro-text h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

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

.trust-section h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.trust-content {
    max-width: 800px;
    margin: 0 auto;
}

/* Why Choose / Benefits */
.why-choose .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.03);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

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

.feature-card .icon-box {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-light);
}

/* Features Detailed */
.features-wrapper {
    margin-top: 60px;
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.feature-row.reverse .feature-content {
    order: 2;
}

.feature-row.reverse .feature-image {
    order: 1;
}

.feature-content h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-content p {
    font-size: 1.1rem;
    color: var(--text-light);
}

.list-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
}

.shadow-img {
    width: 100%;
    height: auto;
    box-shadow: var(--shadow-lg);
    transition: transform 0.4s ease;
}

.feature-row:hover .shadow-img {
    transform: scale(1.03);
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-text h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.glass-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--deep-navy);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(30, 115, 190, 0.1);
}

.btn-block {
    width: 100%;
    text-align: center;
}

/* Social */
.social-links {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.contact-form textarea {
    resize: vertical;
}

/* Inline Form Notifications */
.form-message {
    margin-top: 15px;
    padding: 12px;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    display: none;
    transition: all 0.3s ease;
}

.form-message.success {
    display: block;
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.form-message.error {
    display: block;
    background-color: rgba(255, 0, 0, 0.05);
    color: #e74c3c;
    border: 1px solid #e74c3c;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-light);
    border-radius: 30px;
    font-weight: 600;
    color: var(--deep-navy);
}

.social-icon:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* Footer */
.footer {
    background-color: var(--deep-navy);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

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

.footer-logo {
    height: 52px;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 8px 12px;
    border-radius: 8px;
}

.footer p {
    color: rgba(255,255,255,0.7);
    margin-top: 16px;
}

.footer h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.footer-links a {
    color: rgba(255,255,255,0.7);
    display: block;
    margin-bottom: 12px;
}

.footer-links a:hover {
    color: var(--accent-green);
    transform: translateX(5px);
}

.social-icons-footer {
    display: flex;
    gap: 15px;
}

.social-icons-footer a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--white);
}

.social-icons-footer a:hover {
    background: var(--primary-blue);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .brand-logo {
        height: 38px !important;
        max-width: 60vw;
    }
    .header-actions {
        display: none; /* Hide primary CTA on small screens in header */
    }
    .hamburger-menu {
        display: flex;
    }
    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(255, 255, 255, 0.98);
        box-shadow: var(--shadow-md);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        border-top: 1px solid var(--border-color);
        z-index: 999;
    }
    .nav.active {
        opacity: 1;
        visibility: visible;
    }
    .nav-list {
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        gap: 20px;
    }
    .slide-content-wrapper, .feature-row, .contact-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .slide-image {
        display: none;
    }
    .hero {
        height: 100vh;
        min-height: 600px; /* Fix height zero issue */
    }
    .slide-content-wrapper {
        padding-top: 30px;
    }
    .slide-text h1 {
        font-size: 2.8rem;
    }
    .slide-text p {
        margin: 0 auto 30px;
        max-width: 100%;
    }
    .hero-actions {
        justify-content: center;
    }
    .feature-row.reverse .feature-content, .feature-row.reverse .feature-image {
        order: unset;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .slide-text h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 2rem !important;
    }
    .social-links {
        flex-wrap: wrap;
    }
    .hero {
        min-height: 500px;
    }
    .slide-content-wrapper {
        padding-top: 10px;
    }
}