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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #ffffff;
}

/* CSS Custom Properties */
:root {
    --color-primary: #1a365d;
    --color-secondary: #2563eb;
    --color-accent: #059669;
    --color-text: #2c3e50;
    --color-text-light: #64748b;
    --color-background: #ffffff;
    --color-surface: #f8fafc;
    --color-border: #e2e8f0;
    --color-error: #dc2626;
    --color-success: #16a34a;
    
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --container-max-width: 1200px;
    --container-padding: 1rem;
    
    --transition: all 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover, a:focus {
    color: var(--color-accent);
    outline: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn--primary:hover, .btn--primary:focus {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn--secondary:hover, .btn--secondary:focus {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition);
}

.nav__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav__logo-link {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

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

.nav__link {
    color: var(--color-text);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition);
}

.nav__link:hover::after, .nav__link:focus::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
}

.nav__toggle-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><circle cx="30" cy="30" r="4"/></g></svg>') repeat;
}

.hero__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    position: relative;
    z-index: 1;
}

.hero__content {
    max-width: 600px;
}

.hero__title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: white;
}

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

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* About Section */
.about {
    padding: 5rem 0;
    background-color: var(--color-surface);
}

.about__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.about__intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.about__text {
    font-size: 1.125rem;
    color: var(--color-text);
}

.highlights {
    margin-top: 3rem;
}

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

.highlight {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.highlight:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.highlight__title {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.highlight__text {
    color: var(--color-text-light);
}

/* Experience Section */
.experience {
    padding: 5rem 0;
}

.experience__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.experience__title {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.experience__intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.125rem;
}

.experience__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.experience__item {
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent);
}

.experience__brand {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.experience__description {
    color: var(--color-text-light);
    margin: 0;
}

.logo-wall {
    margin-top: 3rem;
}

.logo-wall__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.logo-placeholder {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.logo-placeholder:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Services Section */
.services {
    padding: 5rem 0;
    background-color: var(--color-surface);
}

.services__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.services__title {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 3rem;
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card__title {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.service-card__list {
    list-style: none;
    padding: 0;
}

.service-card__list li {
    padding: 0.5rem 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1.5rem;
}

.service-card__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* Why Us Section */
.why-us {
    padding: 5rem 0;
}

.why-us__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.why-us__title {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 3rem;
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.why-us__item {
    text-align: center;
    padding: 1.5rem;
}

.why-us__item-title {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.why-us__item-text {
    color: var(--color-text-light);
    margin: 0;
}

.cta-section {
    text-align: center;
    background: var(--color-surface);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    margin-top: 3rem;
}

.cta-section__text {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: 2rem;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background-color: var(--color-surface);
}

.contact__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact__title {
    color: var(--color-primary);
    margin-bottom: 2rem;
}

.contact__name {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.contact__role {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.contact__links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact__link {
    color: var(--color-text);
    padding: 0.5rem 0;
    font-weight: 500;
}

/* Contact Form */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text);
}

.form__input,
.form__textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__error {
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form__error.show {
    display: block;
}

.form__input.error,
.form__textarea.error {
    border-color: var(--color-error);
}

.form__submit {
    width: 100%;
    margin-bottom: 1rem;
}

.form__privacy {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: center;
    margin: 0;
}

.form__success {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    border: 2px solid var(--color-success);
    display: none;
}

.form__success.show {
    display: block;
}

.form__success h3 {
    color: var(--color-success);
    margin-bottom: 1rem;
}

.form__success p {
    color: var(--color-text-light);
    margin: 0;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

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

.footer__contact p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer__links-title {
    color: white;
    margin-bottom: 1rem;
}

.footer__links-list {
    list-style: none;
}

.footer__links-list li {
    margin-bottom: 0.5rem;
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
}

.footer__link:hover, .footer__link:focus {
    color: white;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
}

.footer__privacy {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    margin: 0;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }
    
    .nav__menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        border-top: 1px solid var(--color-border);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav__menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__item {
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav__item:last-child {
        border-bottom: none;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__toggle.open .nav__toggle-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav__toggle.open .nav__toggle-line:nth-child(2) {
        opacity: 0;
    }
    
    .nav__toggle.open .nav__toggle-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .contact__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .highlights__grid,
    .services__grid,
    .why-us__grid {
        grid-template-columns: 1fr;
    }
    
    .experience__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .nav,
    .contact-form,
    .btn {
        display: none;
    }
    
    body {
        color: black;
        background: white;
    }
    
    .hero {
        background: white;
        color: black;
        min-height: auto;
        padding: 2rem 0;
    }
    
    .hero__title {
        color: black;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus indicators */
*:focus {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

.btn:focus {
    outline-color: rgba(255, 255, 255, 0.8);
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius);
    z-index: 1001;
}

.skip-link:focus {
    top: 6px;
}