/* ============================================
   CSS Variables
   ============================================ */
:root {
    --color-primary: #003366;
    --color-secondary: #0066cc;
    --color-accent: #66b3ff;
    --color-text: #333;
    --color-text-light: #555;
    --color-text-lighter: #666;
    --color-bg: #f4f4f4;
    --color-bg-light: #f9f9f9;
    --color-white: #fff;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius: 8px;
    --touch-target: 44px;
    --font-size-base: 1rem;
    --font-size-sm: 0.9rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.3rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
}

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

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    font-size: var(--font-size-base);
}

/* ============================================
   Container (Mobile First)
   ============================================ */
.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    max-width: 100%;
}

/* ============================================
   Header Navigation (Mobile First)
   ============================================ */
header {
    background-color: var(--color-primary);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

header .logo {
    color: var(--color-white);
    font-size: var(--font-size-3xl);
    font-weight: bold;
    text-decoration: none;
    display: block;
    min-height: var(--touch-target);
    line-height: var(--touch-target);
  
}

header ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    align-items: center;
}

header ul li {
    width: 100%;
    text-align: center;
}

header ul li a {
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-size-lg);
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: var(--touch-target);
    line-height: calc(var(--touch-target) - 2 * var(--spacing-sm));
    border-radius: var(--border-radius);
    transition: background-color 0.3s, color 0.3s;
}

header ul li a:active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
}

/* ============================================
   Hero Section (Mobile First)
   ============================================ */
.hero {
    background-color: var(--color-white);
    padding: 0;
}

.hero-image {
    width: 100%;
    max-height: 300px;
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    max-width: 60%;
    height: auto;
    display: block;
    object-fit: cover;
    margin: var(--spacing-sm) auto;
}

/* ============================================
   Intro Section (Mobile First)
   ============================================ */
.intro {
    background-color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.intro h1 {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.intro h2 {
    font-size: var(--font-size-2xl);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-lg);
}

.intro .tagline {
    font-size: var(--font-size-lg);
    font-style: italic;
    color: var(--color-text-light);
    max-width: 100%;
    margin: 0 auto var(--spacing-lg);
    padding: 0 var(--spacing-sm);
}

.intro .about {
    max-width: 100%;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background-color: var(--color-bg-light);
    border-radius: var(--border-radius);
    text-align: left;
}

.intro .about p {
    margin: 0;
}

/* ============================================
   Services Section (Mobile First)
   ============================================ */
.services {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.services h2 {
    text-align: center;
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
}

.service-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.service-item {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.service-item h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-item .price {
    font-size: var(--font-size-xl);
    color: var(--color-secondary);
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.service-item .note {
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.service-item .description {
    color: var(--color-text-light);
    line-height: 1.6;
    text-align: left;
}

.logo-section {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.company-logo {
    max-width: 100%;
    width: 100%;
    max-width: 280px;
    height: auto;
    margin: 0 auto;
    display: block;
}

/* ============================================
   Contact Section (Mobile First)
   ============================================ */
.contact {
    background-color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.contact h2 {
    text-align: center;
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.contact > .container > p {
    text-align: center;
    max-width: 100%;
    margin: 0 auto var(--spacing-md);
    font-size: var(--font-size-lg);
    padding: 0 var(--spacing-sm);
}

.contact-info {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.contact-info .phone {
    font-size: var(--font-size-2xl);
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-info .email {
    font-size: var(--font-size-lg);
}

.contact-info a {
    color: var(--color-secondary);
    text-decoration: none;
    display: inline-block;
    min-height: var(--touch-target);
    line-height: var(--touch-target);
    padding: 0 var(--spacing-sm);
}

.contact-info a:active {
    text-decoration: underline;
}

/* ============================================
   Contact Form (Mobile First)
   ============================================ */
.contact-form {
    max-width: 100%;
    margin: var(--spacing-xl) auto;
    background-color: var(--color-bg-light);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
}

.form-message {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    text-align: center;
    min-height: var(--touch-target);
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 2px solid #f5c6cb;
}

.contact-form h3 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-2xl);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 2px solid #ddd;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    min-height: var(--touch-target);
    font-family: inherit;
    -webkit-appearance: none;
    appearance: none;
}

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

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.contact-form button {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-lg);
    font-weight: bold;
    cursor: pointer;
    min-height: var(--touch-target);
    transition: background-color 0.3s, transform 0.1s;
    -webkit-tap-highlight-color: transparent;
}

.contact-form button:active {
    background-color: var(--color-secondary);
    transform: scale(0.98);
}

.contact-form button:disabled {
    background-color: #999;
    cursor: not-allowed;
    opacity: 0.7;
}

/* ============================================
   Payment Section (Mobile First)
   ============================================ */
.payment {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.payment h2 {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.payment p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-sm);
}

.payment-options {
    margin: var(--spacing-lg) 0;
}

.payment-options img {
    max-width: 100%;
    width: 100%;
    max-width: 400px;
    height: auto;
    margin: 0 auto;
    display: block;
}

.paypal-button {
    margin-top: var(--spacing-lg);
}

.paypal-button h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.paypal-button form {
    display: inline-block;
    margin: var(--spacing-md) 0;
}

.paypal-button img {
    max-width: 100%;
    height: auto;
    min-height: var(--touch-target);
}

.paypal-button .note {
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
    font-style: italic;
    margin-top: var(--spacing-md);
    display: block;
}

/* ============================================
   Footer (Mobile First)
   ============================================ */
footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
}

footer > .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    text-align: center;
}

footer .logo-section {
    margin-top: 0;
}

footer .footer-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

footer p {
    margin: var(--spacing-xs) 0;
    font-size: var(--font-size-base);
}

/* ============================================
   Desktop Styles (min-width: 768px)
   ============================================ */
@media (min-width: 768px) {
    .container {
        max-width: 1200px;
        padding: 0 var(--spacing-lg);
    }

    /* Header Navigation Desktop */
    header nav {
        flex-direction: row;
        justify-content: space-between;
        gap: 0;
    }

    header ul {
        flex-direction: row;
        gap: var(--spacing-lg);
        width: auto;
    }

    header ul li {
        width: auto;
    }

    header ul li a {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: auto;
        line-height: 1.5;
    }

    header ul li a:hover {
        background-color: rgba(255, 255, 255, 0.1);
        color: var(--color-accent);
    }

    /* Hero Desktop */
    .hero-image {
        max-height: 500px;
    }

    /* Intro Desktop */
    .intro {
        padding: calc(var(--spacing-sm) * 2) 0;
    }

    .intro h1 {
        font-size: var(--font-size-4xl);
    }

    .intro h2 {
        font-size: var(--font-size-3xl);
    }

    .intro .tagline {
        font-size: var(--font-size-xl);
        max-width: 800px;
    }

    .intro .about {
        max-width: 700px;
        padding: var(--spacing-xl);
    }

    /* Services Desktop */
    .services {
        padding: calc(var(--spacing-sm) * 2) 0;
    }

    .service-list {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-xl);
    }

    .service-item {
        padding: var(--spacing-xl);
    }

    .logo-section {
        text-align: left;
    }

    .company-logo {
        max-width: 300px;
        margin: 0;
    }

    /* Contact Desktop */
    .contact {
        padding: var(--spacing-sm);
    }

    .contact > .container > p {
        max-width: 700px;
        padding: 0;
    }

    .contact-info .phone {
        font-size: var(--font-size-3xl);
    }

    .contact-form {
        max-width: 600px;
        padding: var(--spacing-xl);
    }

    .contact-form button:hover {
        background-color: var(--color-secondary);
    }

    /* Payment Desktop */
    .payment {
        padding: calc(var(--spacing-xl) * 2) 0;
    }

    .payment-options img {
        max-width: 500px;
    }

    /* Footer Desktop */
    footer > .container {
        flex-direction: row;
        align-items: center;
        text-align: center;
        gap: var(--spacing-xl);
    }

    footer .logo-section {
        flex-shrink: 0;
        text-align: center;
    }

    footer .footer-text {
        align-items: center;
        flex: 1;
    }

}