/* ============================================
   TSA Brand Colors (from Brand ID Guide)
   ============================================ */
:root {
    /* Primary Colors */
    --tsa-red: #D22630;
    --tsa-blue: #425563;
    --tsa-blue-medium: #536876;
    --tsa-blue-dark: #2C4050;

    /* Secondary Colors */
    --light-blue: #B6C9D3;
    --teal: #58B2B7;
    --orange: #F47B26;
    --light-grey: #A5A5A5;

    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #F9FAFB;
    --text-dark: #2C4050;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    color: var(--tsa-blue);
    background-color: var(--off-white);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   Container & Utility Classes
   ============================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* ============================================
   Watermark Background
   ============================================ */
.watermark-container {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 800px;
    height: auto;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.watermark {
    width: 100%;
    height: auto;
    opacity: 0.08;
    display: block;
}

/* ============================================
   Header
   ============================================ */
.header {
    background-color: var(--white);
    position: relative;
    z-index: 10;
    border-bottom: 1px solid #E5E7EB;
}

.header .container {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 50px;
    width: auto;
}

.tagline {
    font-size: 0.875rem;
    font-weight: 300;
    color: var(--tsa-blue);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    position: relative;
    z-index: 5;
    padding: 3rem 0;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    margin-bottom: 4rem;
    padding: 3rem 1rem;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--tsa-blue-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--tsa-blue-medium);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--tsa-blue-dark);
    margin-bottom: 3rem;
    text-align: center;
}

.offices-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Office Cards */
.office-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-top: 4px solid var(--tsa-red);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.office-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.office-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--tsa-red);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #E5E7EB;
}

.office-details {
    color: var(--tsa-blue);
}

.office-details p {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.6;
}

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

.office-details .phone {
    font-weight: 600;
    color: var(--tsa-blue-dark);
    margin-top: 1rem;
}

.office-details .phone:first-of-type {
    margin-top: 1rem;
}

.office-details .fax {
    font-size: 0.875rem;
    color: var(--tsa-blue-medium);
    font-weight: 400;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--tsa-red);
    color: var(--white);
    padding: 2rem 0;
    margin-top: auto;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
}

.footer-locations {
    font-size: 0.875rem;
    font-weight: 300;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-copyright {
    font-size: 0.75rem;
    font-weight: 300;
    opacity: 0.9;
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

/* Tablet: 768px and up */
@media (min-width: 768px) {
    .logo {
        height: 60px;
    }

    .tagline {
        font-size: 1rem;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-subtitle {
        font-size: 1.375rem;
    }

    .offices-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .watermark-container {
        max-width: 1000px;
    }
}

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
    .logo {
        height: 70px;
    }

    .hero {
        padding: 4rem 1rem;
    }

    .hero-title {
        font-size: 4rem;
    }

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

    .offices-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .office-card {
        padding: 2.5rem;
    }

    .watermark-container {
        max-width: 1200px;
    }
}

/* Large Desktop: 1440px and up */
@media (min-width: 1440px) {
    .watermark-container {
        max-width: 1400px;
    }
}

/* ============================================
   Mobile Adjustments
   ============================================ */
@media (max-width: 767px) {
    .logo-wrapper {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .hero {
        padding: 2rem 1rem;
    }

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

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .office-card {
        padding: 1.5rem;
    }

    .watermark {
        opacity: 0.05;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .watermark-container {
        display: none;
    }

    .office-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #E5E7EB;
    }

    .footer {
        background-color: var(--tsa-blue-dark);
    }
}