/* 2Err Digital Website - Main Stylesheet */

/* ========================================
   CSS Variables & Color Scheme
   ======================================== */
:root {
    --primary-navy: #082d5f;
    --primary-teal: #008b8b;
    --bright-cyan: #00b4d8;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --dark-gray: #333333;
    --medium-gray: #666666;
    --light-border: #e0e0e0;
    --accent-teal: #17a2b8;
}

/* ========================================
   Global Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    line-height: 1.2;
}

h3 {
    font-size: 1.75rem;
    line-height: 1.3;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--medium-gray);
    font-size: 1rem;
}

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

a:hover {
    color: var(--bright-cyan);
}

/* ========================================
   Header & Navigation
   ======================================== */
header {
    background-color: var(--white);
    border-bottom: 1px solid var(--light-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-navy);
}

.logo img {
    height: 50px;
    margin-right: 0.5rem;
}

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

.nav-menu a {
    color: var(--primary-navy);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-teal);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-navy);
}

/* Mobile Menu Toggle */
@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--white);
        gap: 1rem;
        padding: 2rem;
        display: none;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .navbar {
        padding: 1rem;
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-teal) 100%);
    color: var(--white);
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background-color: var(--bright-cyan);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-decoration: none;
}

.btn:hover {
    background-color: var(--accent-teal);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--light-gray);
}

/* ========================================
   Container & Sections
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 4rem 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Grid Layouts
   ======================================== */
.grid {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ========================================
   Cards
   ======================================== */
.card {
    background-color: var(--white);
    border: 1px solid var(--light-border);
    border-radius: 8px;
    padding: 2rem;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-teal);
}

.card h3 {
    margin-bottom: 1rem;
}

.card p {
    margin-bottom: 1.5rem;
}

/* ========================================
   Features Section
   ======================================== */
.features {
    background-color: var(--light-gray);
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background-color: var(--primary-teal);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-content h4 {
    margin-bottom: 0.5rem;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing-card {
    border: 2px solid var(--light-border);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-card.featured {
    border-color: var(--primary-teal);
    box-shadow: 0 8px 16px rgba(0, 139, 139, 0.15);
    transform: scale(1.05);
}

.pricing-card h3 {
    margin-bottom: 1rem;
}

.price {
    font-size: 2.5rem;
    color: var(--primary-teal);
    font-weight: 700;
    margin: 1rem 0;
}

.pricing-card ul {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.pricing-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-border);
    color: var(--medium-gray);
}

.pricing-card li:last-child {
    border-bottom: none;
}

/* ========================================
   Forms
   ======================================== */
form {
    max-width: 600px;
    margin: 2rem auto;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-navy);
}

input,
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--light-border);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-teal);
    box-shadow: 0 0 0 3px rgba(0, 139, 139, 0.1);
}

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

.form-group button {
    width: 100%;
}

/* ========================================
   Footer
   ======================================== */
footer {
    background-color: var(--primary-navy);
    color: var(--white);
    padding: 3rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--bright-cyan);
    margin-bottom: 1rem;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--bright-cyan);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
    text-align: center;
}

.text-teal {
    color: var(--primary-teal);
}

.text-navy {
    color: var(--primary-navy);
}

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

.mt-2 {
    margin-top: 2rem;
}

.mt-4 {
    margin-top: 4rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mb-4 {
    margin-bottom: 4rem;
}

.py-4 {
    padding: 4rem 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .hero {
        padding: 4rem 1rem;
    }

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

    .hero p {
        font-size: 1rem;
    }

    section {
        padding: 2rem 1rem;
    }

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

    .pricing-card.featured {
        transform: scale(1);
    }

    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

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

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

    h2 {
        font-size: 1.25rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .price {
        font-size: 2rem;
    }
}