/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
    /* Colors */
    --color-primary: #2c5282;
    --color-primary-dark: #1a365d;
    --color-primary-light: #4299e1;
    --color-secondary: #c9a87c;
    --color-secondary-light: #d4b896;
    --color-accent: #e8d4b8;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;

    /* Spacing */
    --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;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;

    /* Effects */
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

/* ========================================
   Layout
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

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

.section__header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section__subtitle {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-2);
}

.section__title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

.section__description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-gray-600);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    cursor: pointer;
}

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

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

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

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

.btn--full {
    width: 100%;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-white);
    z-index: 1000;
    transition: box-shadow var(--transition);
}

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav__link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-primary);
}

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

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

.nav__link--cta::after {
    display: none;
}

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

.nav__toggle,
.nav__close {
    display: none;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background-color: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: var(--space-16) var(--space-8);
        transition: right var(--transition);
        z-index: 1001;
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-6);
    }

    .nav__link {
        font-size: var(--text-lg);
    }

    .nav__toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        z-index: 1002;
    }

    .nav__toggle span {
        width: 25px;
        height: 2px;
        background-color: var(--color-gray-700);
        transition: all var(--transition);
    }

    .nav__close {
        display: block;
        position: absolute;
        top: var(--space-6);
        right: var(--space-6);
        width: 32px;
        height: 32px;
        cursor: pointer;
    }

    .nav__close span {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 20px;
        height: 2px;
        background-color: var(--color-gray-700);
    }

    .nav__close span:first-child {
        transform: translate(-50%, -50%) rotate(45deg);
    }

    .nav__close span::after {
        content: '';
        position: absolute;
        width: 20px;
        height: 2px;
        background-color: var(--color-gray-700);
        transform: rotate(90deg);
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding-top: calc(var(--header-height) + var(--space-12));
    padding-bottom: var(--space-20);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.hero__subtitle {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.hero__title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.hero__description {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--space-8);
}

.hero__buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.hero__features {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.hero__feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.hero__feature-icon {
    color: var(--color-primary);
    font-weight: bold;
}

.hero__image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image-placeholder {
    width: 350px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    box-shadow: var(--shadow-xl);
}

.hero__initials {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.hero__image-text {
    font-size: var(--text-sm);
    opacity: 0.8;
}

@media (max-width: 968px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__title {
        font-size: var(--text-3xl);
    }

    .hero__buttons {
        justify-content: center;
    }

    .hero__features {
        justify-content: center;
    }

    .hero__image {
        order: -1;
    }

    .hero__image-placeholder {
        width: 280px;
        height: 320px;
    }

    .hero__initials {
        font-size: 4rem;
    }
}

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

.about__content {
    max-width: 900px;
    margin: 0 auto;
}

.about__text {
    margin-bottom: var(--space-10);
}

.about__text p {
    margin-bottom: var(--space-4);
    font-size: var(--text-lg);
    color: var(--color-gray-600);
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-10);
}

.stat {
    text-align: center;
    padding: var(--space-6);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.stat__number {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.stat__label {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.about__languages h3 {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    text-align: center;
}

.languages__list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.language-tag {
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-accent);
    color: var(--color-gray-800);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
}

@media (max-width: 768px) {
    .about__stats {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background-color: var(--color-gray-50);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.service-card {
    background-color: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.service-card--highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.service-card--highlight .service-card__title {
    color: var(--color-white);
}

.service-card--highlight .service-card__description {
    color: rgba(255, 255, 255, 0.9);
}

.service-card--highlight .service-card__list li {
    color: rgba(255, 255, 255, 0.9);
}

.service-card--highlight .service-card__list li::before {
    color: var(--color-secondary-light);
}

.service-card__icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
}

.service-card--highlight .service-card__icon {
    background-color: rgba(255, 255, 255, 0.2);
}

.service-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.service-card__description {
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
    font-size: var(--text-sm);
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.service-card__list li {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    padding-left: var(--space-5);
    position: relative;
}

.service-card__list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

@media (max-width: 768px) {
    .services__grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Approach Section
   ======================================== */
.approach {
    background-color: var(--color-white);
}

.approach__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.approach-card {
    padding: var(--space-6);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.approach-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.approach-card__number {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-4);
}

.approach-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.approach-card__description {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

@media (max-width: 968px) {
    .approach__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .approach__grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    background-color: var(--color-gray-50);
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq__question {
    padding: var(--space-5) var(--space-6);
    font-weight: 600;
    color: var(--color-gray-900);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition);
}

.faq__question:hover {
    background-color: var(--color-gray-50);
}

.faq__question::after {
    content: '+';
    font-size: var(--text-xl);
    color: var(--color-primary);
    transition: transform var(--transition);
}

.faq__item[open] .faq__question::after {
    transform: rotate(45deg);
}

.faq__answer {
    padding: 0 var(--space-6) var(--space-5);
    color: var(--color-gray-600);
}

.faq__answer p {
    line-height: 1.7;
}

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

.contact__container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-12);
}

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

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

.contact__icon {
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.contact__details h3 {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.contact__details a,
.contact__details p {
    color: var(--color-gray-600);
    font-size: var(--text-sm);
}

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

.contact__details small {
    color: var(--color-gray-400);
}

/* Contact Form */
.contact__form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
    background-color: var(--color-gray-50);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
}

.form__group--full {
    grid-column: span 2;
}

.form__label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form__input,
.form__select,
.form__textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

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

.form__note {
    grid-column: span 2;
    text-align: center;
    color: var(--color-gray-500);
    margin-top: var(--space-2);
}

@media (max-width: 968px) {
    .contact__container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .contact__form {
        grid-template-columns: 1fr;
    }

    .form__group--full {
        grid-column: span 1;
    }

    .form__note {
        grid-column: span 1;
    }
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--space-12) 0 var(--space-8);
}

.footer__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-gray-700);
}

.footer__logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-white);
}

.footer__tagline {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    margin-top: var(--space-2);
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer__nav a {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    transition: color var(--transition);
}

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

.footer__contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer__contact a {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    transition: color var(--transition);
}

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

.footer__bottom {
    text-align: center;
}

.footer__bottom p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-1);
}

.footer__location {
    font-size: var(--text-xs);
}

@media (max-width: 768px) {
    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__nav {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-4);
    }

    .footer__contact {
        align-items: center;
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Animation for scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}