/* ========================================
   THEME STYLES - Free Flow
   Color Palette: Blue (#1e40af) → Cyan (#06b6d4) → Teal (#14b8a6)
   ======================================== */

:root {
    /* Primary Colors */
    --color-primary: #06b6d4;
    --color-primary-dark: #0891b2;
    --color-primary-light: #22d3ee;

    --color-secondary: #14b8a6;
    --color-secondary-dark: #0d9488;

    --color-accent: #1e40af;
    --color-accent-dark: #1e3a8a;

    /* Neutral Colors */
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #0f172a;

    --color-text: #334155;
    --color-text-light: #64748b;
    --color-heading: #0f172a;

    --color-border: #e2e8f0;

    /* Alert Colors */
    --color-warning: #f59e0b;
    --color-warning-bg: #fef3c7;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition: all 0.3s ease;
}

/* ========================================
   HEADER
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-heading);
}

.logo img {
    height: 40px;
    width: auto;
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    color: var(--color-text);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: width 0.3s ease;
}

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

.nav a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-heading);
}

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

.hero {
    margin-top: 70px;
    background: linear-gradient(135deg, #1e40af 0%, #06b6d4 50%, #14b8a6 100%);
    color: white;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/pattern.svg') repeat;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.hero-image {
    margin-top: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
    padding: 4rem 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

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

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: 1rem auto 0;
    border-radius: 2px;
}

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

.card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 1.5rem;
}

.card h3 {
    color: var(--color-heading);
    margin-bottom: 1rem;
}

.card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   ALERT BOX
   ======================================== */

.alert {
    background: var(--color-warning-bg);
    border-left: 4px solid var(--color-warning);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.alert-title {
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.alert p {
    color: var(--color-text);
    margin-bottom: 0;
}

/* ========================================
   INFO BOX
   ======================================== */

.info-box {
    background: white;
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
}

.info-box h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.info-box ul {
    list-style: none;
    margin-left: 0;
}

.info-box li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.info-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 700;
}

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

.footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0 1.5rem;
}

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

.footer h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    display: block;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

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

.footer-company {
    font-size: 0.75rem;
    line-height: 1.4;
    opacity: 0.5;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-company p {
    margin-bottom: 0.25rem;
}

/* ========================================
   CONTENT SECTIONS
   ======================================== */

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    color: var(--color-heading);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--color-primary);
}

.content-section h3 {
    color: var(--color-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-section p {
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.content-section ul,
.content-section ol {
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.content-section li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

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

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .section {
        padding: 2rem 0;
    }

    .card {
        padding: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}