/* ============================================
   JAQUILEX - INSTITUTIONAL KNOWLEDGE PORTAL
   Main CSS File
   ============================================ */

:root {
    --primary: #3A506B;
    --secondary: #5BC0BE;
    --light-grey: #F7F7F7;
    --medium-grey: #BFBFBF;
    --dark-text: #1A1A1A;
    --white: #FFFFFF;
    
    --spacing-unit: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 64px;
    --spacing-xxl: 128px;
    
    --max-width: 1280px;
    --transition: 0.3s ease-in-out;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--white);
    color: var(--dark-text);
    line-height: 1.6;
    font-size: 16px;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

h1 {
    font-size: 48px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
}

h2 {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

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

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

/* ============================================
   LAYOUT STRUCTURE
   ============================================ */

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
}

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

.section {
    padding: var(--spacing-xxl) 0;
    border-bottom: 1px solid var(--medium-grey);
}

.section:last-child {
    border-bottom: none;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    background-color: var(--primary);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

header nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: color var(--transition);
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}

.nav-menu a:hover {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

.nav-menu a.active {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background-color: var(--light-grey);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-text h1 {
    text-align: left;
    font-size: 52px;
    margin-bottom: var(--spacing-lg);
}

.hero-text p {
    text-align: left;
    font-size: 18px;
    color: #555;
    margin-bottom: var(--spacing-xl);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    max-height: 400px;
    object-fit: cover;
}

/* ============================================
   TWO-COLUMN SECTION
   ============================================ */

.section-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.section-two-col.reverse {
    grid-template-columns: 1fr 1fr;
    direction: rtl;
}

.section-two-col.reverse > * {
    direction: ltr;
}

.section-text {
    padding: var(--spacing-md);
}

.section-text h2 {
    margin-bottom: var(--spacing-lg);
}

.section-image {
    display: flex;
    justify-content: center;
}

.section-image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    max-height: 500px;
    object-fit: cover;
}

/* ============================================
   CARDS SECTION
   ============================================ */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.card {
    background-color: var(--white);
    border: 1px solid var(--medium-grey);
    border-radius: 4px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
}

.card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
    border-color: var(--secondary);
}

.card img {
    max-width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: var(--spacing-md);
}

.card h3 {
    margin-bottom: var(--spacing-md);
    font-size: 20px;
}

.card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 0;
}

/* ============================================
   BUTTONS & LINKS
   ============================================ */

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.5px;
    border: 2px solid var(--primary);
    transition: all var(--transition);
    cursor: pointer;
}

.btn:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
    text-decoration: none;
}

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

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

/* ============================================
   FOOTER
   ============================================ */

footer {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

footer .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

footer h3 {
    color: var(--secondary);
    font-size: 16px;
    margin-bottom: var(--spacing-md);
}

footer a {
    display: block;
    color: var(--white);
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition);
}

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

.footer-brand {
    text-align: center;
    font-size: 14px;
    color: var(--medium-grey);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-lg);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .section-two-col,
    .cards-grid,
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .section-two-col.reverse {
        direction: ltr;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    h1 {
        font-size: 36px;
    }
    
    h2 {
        font-size: 28px;
    }
    
    h3 {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        gap: var(--spacing-md);
        font-size: 12px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    footer .container {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 28px;
    }
    
    h2 {
        font-size: 22px;
    }
    
    h3 {
        font-size: 18px;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.pt-xl {
    padding-top: var(--spacing-xl);
}

.pb-xl {
    padding-bottom: var(--spacing-xl);
}

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

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

/* ============================================
   DISCLAIMER SECTION
   ============================================ */

.disclaimer {
    background-color: var(--light-grey);
    border-left: 4px solid var(--secondary);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    border-radius: 4px;
}

.disclaimer h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    font-size: 16px;
}

.disclaimer p {
    font-size: 14px;
    color: #555;
    margin-bottom: var(--spacing-sm);
}

.disclaimer p:last-child {
    margin-bottom: 0;
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumbs {
    padding: var(--spacing-md) 0;
    font-size: 13px;
    color: #666;
}

.breadcrumbs a {
    color: var(--secondary);
    margin: 0 4px;
}

/* ============================================
   BLOG CARDS
   ============================================ */

.blog-card {
    background-color: var(--white);
    border: 1px solid var(--medium-grey);
    border-radius: 4px;
    overflow: hidden;
    transition: all var(--transition);
}

.blog-card:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    border-color: var(--secondary);
}

.blog-card-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.blog-card-content {
    padding: var(--spacing-lg);
}

.blog-card-date {
    font-size: 12px;
    color: var(--secondary);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.blog-card h3 {
    margin: var(--spacing-md) 0;
}

.blog-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: var(--spacing-lg);
}

.blog-card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary);
    text-decoration: none;
}

.blog-card-link:hover {
    text-decoration: underline;
}

/* ============================================
   TABLE STYLES
   ============================================ */

table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
}

table th {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
}

table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--medium-grey);
}

table tbody tr:hover {
    background-color: var(--light-grey);
}

/* ============================================
   LIST STYLES
   ============================================ */

ul, ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-form {
    max-width: 600px;
    margin: var(--spacing-xl) auto;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--medium-grey);
    border-radius: 4px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(91, 192, 190, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   PAGE TITLE SECTION
   ============================================ */

.page-header {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-xxl) 0;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 0;
}

.page-header p {
    font-size: 18px;
    margin: var(--spacing-lg) 0 0 0;
}