/* TechStaq Connect - Color Theme & Base Styles */

:root {
    /* TechStaq Brand Colors */
    --dark-blue: #082A4D;
    --accent-blue: #007BFF;
    --light-blue: #1e88e5;
    --data-blue: #7EE3F5;
    --deep-blue: #0d47a1;

    /* Grayscale */
    --white: #FFFFFF;
    --black: #000000;
    --cloud-gray: #D9D9D9;
    --mid-gray: #8E8E8E;
    --white-smoke: #F5F5F5;

    /* Theme Colors */
    --theme-cloud: #e3f2fd;
    --theme-cloud-text: #1976d2;
    --theme-ai: #f3e5f5;
    --theme-ai-text: #7b1fa2;
    --theme-data: #e8f5e9;
    --theme-data-text: #388e3c;
    --theme-digital: #fff3e0;
    --theme-digital-text: #f57c00;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--black);
    background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Images responsive */
img {
    max-width: 100%;
    height: auto;
}

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

.container-fluid {
    max-width: 100%;
    padding: 0 40px;
}

/* Sections */
section {
    padding: 60px 0;
}

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

.section-header h2 {
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--mid-gray);
    max-width: 700px;
    margin: 0 auto;
}

/* Navigation */
nav {
    background-color: var(--dark-blue);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    gap: 60px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.nav-logo-img {
    height: 20px;
    width: auto;
    display: inline-block;
}

.nav-logo span {
    color: var(--white);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--white);
    border-radius: 3px;
    transition: all 0.3s ease;
}

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

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--accent-blue);
}

/* Hero Section */
.hero {
    position: relative;
    color: var(--white);
    padding: 100px 0;
    text-align: center;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--dark-blue); /* Fallback background */
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 0;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 136, 229, 0.7) 0%, rgba(13, 71, 161, 0.7) 100%);
    z-index: 1;
}

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

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero .tagline {
    font-size: 1.5rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero .event-details {
    font-size: 1.2rem;
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    min-height: 44px; /* Touch-friendly minimum */
    line-height: 1.5;
}

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

.btn-primary:hover {
    background-color: var(--light-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

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

/* Cards */
.card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* Footer */
footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--accent-blue);
}

/* Responsive */
@media (max-width: 968px) {
    .container {
        padding: 0 15px;
    }

    .hamburger {
        display: flex;
    }

    .nav-container {
        flex-wrap: wrap;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--dark-blue);
        flex-direction: column;
        gap: 0;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease;
        padding: 0 20px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    }

    .nav-menu.active {
        max-height: 500px;
        padding: 20px;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        width: 100%;
        text-align: center;
        padding: 12px 20px;
        margin-bottom: 5px;
    }

    section {
        padding: 40px 0;
    }

    .hero {
        min-height: 500px;
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .tagline {
        font-size: 1.2rem;
    }

    .hero .event-details {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .section-header p {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }

    .hero {
        padding: 60px 0 40px;
    }

    .hero h1 { font-size: 2rem; }
    .hero .tagline { font-size: 1.1rem; }
    .hero .event-details { font-size: 1rem; }

    .btn {
        display: block;
        width: 100%;
        margin: 10px 0 !important;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.4rem; }

    .hero h1 { font-size: 1.75rem; }
    .hero .tagline { font-size: 1rem; }

    .card {
        padding: 20px;
    }

    section {
        padding: 30px 0;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.py-1 { padding-top: 1rem; padding-bottom: 1rem; }
.py-2 { padding-top: 2rem; padding-bottom: 2rem; }