/* ===================================
   CSS Custom Properties & Reset
   =================================== */
:root {
    --color-primary: #0D9488;
    --color-primary-dark: #0F766E;
    --color-primary-light: #14B8A6;
    --color-charcoal: #1E293B;
    --color-slate-900: #0F172A;
    --color-slate-800: #1E293B;
    --color-slate-700: #334155;
    --color-slate-600: #475569;
    --color-slate-500: #64748B;
    --color-slate-400: #94A3B8;
    --color-slate-300: #CBD5E1;
    --color-slate-200: #E2E8F0;
    --color-slate-100: #F1F5F9;
    --color-slate-50: #F8FAFC;
    --color-white: #FFFFFF;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --container-max: 1200px;
    --container-padding: var(--space-6);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-slate-700);
    background: var(--color-white);
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--space-20) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-24) 0;
    }
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-12);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-slate-900);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-slate-600);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-slate-700);
    border-color: var(--color-slate-300);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-full {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-slate-100);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-svg {
    width: 48px;
    height: auto;
    color: var(--color-slate-800);
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-slate-700);
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-slate-100);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.nav-menu li {
    margin-bottom: var(--space-4);
}

.nav-menu a {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-slate-700);
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

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

.nav-cta {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
}

.nav-cta:hover {
    background: var(--color-primary-dark);
}

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

    .nav-menu {
        position: static;
        display: flex;
        align-items: center;
        gap: var(--space-8);
        padding: 0;
        background: transparent;
        border: none;
        transform: none;
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        margin-bottom: 0;
    }

    .nav-menu a {
        font-size: var(--font-size-sm);
        padding: 0;
    }
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 72px;
    background: linear-gradient(135deg, var(--color-slate-50) 0%, var(--color-white) 50%, rgba(13, 148, 136, 0.03) 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-12) 0;
}

@media (min-width: 992px) {
    .hero-container {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--space-16);
    }
}

.hero-content {
    max-width: 600px;
}

.hero-tagline {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-slate-900);
    line-height: 1.15;
    margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
}

@media (min-width: 992px) {
    .hero-title {
        font-size: var(--font-size-6xl);
    }
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-slate-600);
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.hero-visual {
    display: none;
}

@media (min-width: 992px) {
    .hero-visual {
        display: flex;
        justify-content: center;
        align-items: center;
    }
}

.hero-image-wrapper {
    position: relative;
    max-width: 450px;
    width: 100%;
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-slow);
}

.hero-image:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

.hero-graphic {
    position: relative;
    width: 350px;
    height: 350px;
}

.graphic-circle {
    position: absolute;
    border-radius: 50%;
    border: 2px solid var(--color-slate-200);
}

.graphic-circle-1 {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    animation: rotate 20s linear infinite;
}

.graphic-circle-2 {
    width: 75%;
    height: 75%;
    top: 12.5%;
    left: 12.5%;
    border-color: var(--color-slate-300);
    animation: rotate 15s linear infinite reverse;
}

.graphic-circle-3 {
    width: 50%;
    height: 50%;
    top: 25%;
    left: 25%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border: none;
    opacity: 0.1;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.graphic-lines {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.graphic-lines span {
    display: block;
    width: 80px;
    height: 3px;
    background: var(--color-primary);
    margin: 12px 0;
    border-radius: var(--radius-full);
    opacity: 0.6;
}

.graphic-lines span:nth-child(1) {
    width: 60px;
    margin-left: 10px;
}

.graphic-lines span:nth-child(2) {
    width: 80px;
}

.graphic-lines span:nth-child(3) {
    width: 50px;
    margin-left: 15px;
}

.graphic-lines span:nth-child(4) {
    width: 70px;
    margin-left: 5px;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 2px solid var(--color-slate-300);
    border-radius: 50%;
    color: var(--color-slate-500);
    animation: bounce 2s infinite;
    transition: all var(--transition-base);
}

.scroll-indicator:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-8px);
    }

    60% {
        transform: translateY(-4px);
    }
}

/* About */
.about {
    background: var(--color-white);
}

.about-content {
    display: grid;
    gap: var(--space-12);
    align-items: start;
}

@media (min-width: 992px) {
    .about-content {
        grid-template-columns: 1.5fr 1fr;
        gap: var(--space-16);
    }
}

.about-intro {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-slate-800);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.about-text p {
    margin-bottom: var(--space-4);
    color: var(--color-slate-600);
}

.about-image {
    display: flex;
    justify-content: center;
}

.about-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 320px;
}

.about-image-wrapper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-xl);
    opacity: 0.15;
    z-index: -1;
}

.about-photo {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    filter: contrast(1.02) saturate(0.95);
    border: 4px solid var(--color-white);
    transition: all var(--transition-slow);
}

.about-photo:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.2);
}

/* Expertise */
.expertise {
    background: var(--color-slate-50);
}

.expertise-grid {
    display: grid;
    gap: var(--space-6);
}

@media (min-width: 640px) {
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .expertise-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.expertise-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-slow);
    border: 1px solid var(--color-slate-100);
}

.expertise-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.expertise-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.expertise-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-slate-900);
    margin-bottom: var(--space-3);
}

.expertise-description {
    font-size: var(--font-size-sm);
    color: var(--color-slate-600);
    line-height: 1.7;
}

/* Experience */
.experience {
    background: var(--color-white);
}

.stats-grid {
    display: grid;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-card {
    text-align: center;
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-slate-50) 0%, var(--color-white) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-slate-100);
}

.stat-number {
    display: block;
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-slate-800);
    margin-bottom: var(--space-2);
}

.stat-description {
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
}

.experience-highlights {
    background: var(--color-slate-800);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    color: var(--color-white);
}

.experience-highlights h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-6);
    color: var(--color-white);
}

.highlights-list {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .highlights-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.highlights-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-slate-300);
}

.highlights-list li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-top: 8px;
    flex-shrink: 0;
}

/* Approach */
.approach {
    background: var(--color-slate-50);
}

.approach-grid {
    display: grid;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
    .approach-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .approach-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.approach-card {
    padding: var(--space-6);
}

.approach-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.3;
    line-height: 1;
    margin-bottom: var(--space-4);
}

.approach-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-slate-900);
    margin-bottom: var(--space-3);
}

.approach-description {
    font-size: var(--font-size-sm);
    color: var(--color-slate-600);
    line-height: 1.7;
}

.approach-quote {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.approach-quote blockquote {
    font-size: var(--font-size-xl);
    font-weight: 500;
    font-style: italic;
    color: var(--color-slate-700);
    line-height: 1.7;
    position: relative;
    padding: var(--space-8) var(--space-12);
}

.approach-quote blockquote::before,
.approach-quote blockquote::after {
    content: '"';
    font-size: var(--font-size-6xl);
    color: var(--color-primary);
    opacity: 0.2;
    position: absolute;
    font-family: Georgia, serif;
}

.approach-quote blockquote::before {
    top: 0;
    left: 0;
}

.approach-quote blockquote::after {
    bottom: -20px;
    right: 0;
}

/* Contact */
.contact {
    background: var(--color-white);
}

.contact-content {
    display: grid;
    gap: var(--space-12);
}

@media (min-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr 1.5fr;
        gap: var(--space-16);
    }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.contact-icon {
    width: 48px;
    height: 48px;
    padding: var(--space-3);
    background: var(--color-slate-100);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.contact-label {
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
}

.contact-value {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-slate-800);
}

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

.contact-cta {
    margin-top: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-slate-200);
}

.contact-cta p {
    font-size: var(--font-size-sm);
    color: var(--color-slate-600);
    margin-bottom: var(--space-4);
}

.contact-form {
    background: var(--color-slate-50);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-slate-700);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-slate-300);
    border-radius: var(--radius-lg);
    background: var(--color-white);
    color: var(--color-slate-800);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-slate-400);
}

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

/* Footer */
.footer {
    background: var(--color-slate-900);
    padding: var(--space-12) 0 var(--space-8);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    align-items: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-slate-700);
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-white);
}

.footer-logo .logo-svg {
    width: 40px;
    color: var(--color-white);
}

.footer-logo span {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    justify-content: center;
}

.footer-nav a {
    font-size: var(--font-size-sm);
    color: var(--color-slate-400);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 639px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}