/*
Theme Name: Ariinfo Modern
Theme URI: https://ariinfo.ee
Author: Antigravity
Description: A beautiful and serious professional training theme for engineers, inspired by modern LMS designs.
Version: 1.0.0
Text Domain: ariinfo-modern
*/

:root {
    --primary-color: #0056b3;
    --secondary-color: #ff9800;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --header-height: 90px;
    --container-width: 1200px;
    --transition: all 0.3s ease;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

/* Header */
.top-bar-social a {
    color: var(--text-light);
    transition: var(--transition);
}

.top-bar-social a:hover {
    color: var(--primary-color);
}

.site-header {
    height: var(--header-height);
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo img {
    max-height: 60px;
    width: auto;
    display: block;
}

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

/* Custom Navigation Styling */
.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 30px;
}

.main-nav ul li {
    position: relative;
}

.main-nav ul li a {
    display: block;
    padding: 30px 0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--text-color);
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.main-nav ul li a:hover {
    color: var(--primary-color);
}

.main-nav ul li a:hover::after {
    width: 100%;
}

/* Sub-menu Styles */
.main-nav ul li ul.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    min-width: 220px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transition);
    padding: 15px 0;
    z-index: 1001;
    border-radius: 0 0 8px 8px;
    border-top: 3px solid var(--primary-color);
}

.main-nav ul li:hover>ul.sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-nav ul li ul.sub-menu li {
    display: block;
    width: 100%;
}

.main-nav ul li ul.sub-menu li a {
    padding: 12px 25px;
    text-transform: none;
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0;
}

.main-nav ul li ul.sub-menu li a::after {
    display: none;
}

.main-nav ul li ul.sub-menu li a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-left: 30px;
}

.header-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
}

.btn-primary:hover {
    background: #004494;
}

/* Hero Section */
.hero {
    padding: 100px 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: #0b1c39;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 35px;
}

/* Grid Layout */
.section-padding {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.category-card {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid #eee;
}

.category-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 86, 179, 0.1);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1) !important;
}

.course-card img {
    transition: var(--transition);
}

.course-card:hover img {
    transform: scale(1.05);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-image {
    animation: fadeInUp 1s ease-out;
}

/* Partner Slider (Infinite Ticker) */
.partners-slider {
    overflow: hidden;
    padding: 40px 0;
    position: relative;
    white-space: nowrap;
    background: var(--white);
}

.partners-track {
    display: flex;
    width: fit-content;
    animation: scroll 40s linear infinite;
}

.partners-track:hover {
    animation-play-state: paused;
}

.partner-slide {
    width: 250px;
    padding: 0 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-slide img {
    max-height: 45px;
    width: auto;
    filter: grayscale(1);
    opacity: 0.4;
    transition: var(--transition);
}

.partner-slide img:hover {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.1);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* --- Mobile Responsiveness --- */

/* Mobile Menu Toggle button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 10px;
}

@media (max-width: 991px) {
    :root {
        --header-height: 70px;
    }

    .top-bar {
        display: none !important;
    }

    .menu-toggle {
        display: block;
    }

    /* Mobile Navigation Drawer */
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 85%;
        height: calc(100vh - var(--header-height));
        background: var(--white);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.1);
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        overflow-y: auto;
    }

    .main-nav.active {
        left: 0;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 20px 0;
    }

    .main-nav ul li {
        width: 100%;
    }

    .main-nav ul li a {
        padding: 15px 25px !important;
        border-bottom: 1px solid #eee;
        display: block;
        font-size: 1rem;
    }

    .main-nav ul li a::after {
        display: none;
    }

    /* Mobile Sub-menu */
    .main-nav ul li ul.sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border-top: none;
        padding: 0;
        display: none;
        background: #fdfdfd;
        width: 100%;
    }

    .main-nav ul li.menu-item-has-children.active>ul.sub-menu {
        display: block;
    }

    .header-actions .btn-primary {
        display: none;
    }

    .hero {
        padding: 40px 0;
    }

    .hero .container {
        flex-direction: column !important;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-image {
        margin-top: 40px;
        max-width: 100%;
    }

    .hero-image img {
        width: 100%;
    }

    .section-padding {
        padding: 50px 0;
    }

    .category-grid {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }

    .course-card img {
        height: 180px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .section-title h2 {
        font-size: 1.8rem !important;
    }

    .partner-slide {
        width: 150px;
        padding: 0 15px;
    }
}