/* ===== Variables & Reset ===== */
:root {
    --blue: #5080F3;
    --purple: #8D5BF4;
    --gradient: linear-gradient(135deg, var(--blue), var(--purple));
    --dark: #0f1729;
    --dark-2: #1a2744;
    --gray-100: #f7f8fc;
    --gray-200: #e8ecf4;
    --gray-400: #94a3b8;
    --gray-600: #64748b;
    --gray-800: #334155;
    --white: #ffffff;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(15, 23, 41, 0.08);
    --shadow-lg: 0 12px 48px rgba(15, 23, 41, 0.12);
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    color: var(--gray-800);
    line-height: 1.7;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

/* ===== Utilities ===== */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition);
    background: var(--gradient);
    color: var(--white);
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(80, 128, 243, 0.35);
}

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

.btn-outline:hover {
    background: var(--blue);
    color: var(--white);
    box-shadow: 0 8px 24px rgba(80, 128, 243, 0.25);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.875rem;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: all var(--transition);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    padding: 10px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--dark);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a.btn {
    color: var(--white);
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 500;
    font-size: 0.925rem;
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--blue);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all var(--transition);
}

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

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

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

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(80, 128, 243, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -150px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(141, 91, 244, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-logo {
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -1px;
    line-height: 1.1;
}

.hero-question {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--gray-600);
    font-weight: 400;
    margin-bottom: 16px;
    font-style: italic;
}

.hero-tagline {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--gray-600);
    font-weight: 400;
    margin-top: 12px;
    letter-spacing: 0.5px;
}

.hero-sub {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 520px;
    margin: 24px auto 0;
    line-height: 1.7;
}

.hero-cta {
    margin-top: 40px;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--gray-100);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-600);
    max-width: 560px;
    margin: 0 auto 56px;
    font-size: 1.05rem;
}

/* ===== About ===== */
.about-content {
    max-width: 720px;
    margin: 32px auto 0;
}

.about-lead {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 16px;
}

.about-content p {
    margin-bottom: 16px;
    color: var(--gray-600);
}

.about-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
    padding-top: 48px;
    border-top: 1px solid var(--gray-200);
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 1.35rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    display: block;
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-top: 4px;
}

/* ===== Services ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(80, 128, 243, 0.15);
}

.service-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(80, 128, 243, 0.1), rgba(141, 91, 244, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon svg {
    width: 24px;
    height: 24px;
    color: var(--blue);
}

.service-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.925rem;
    color: var(--gray-600);
    line-height: 1.65;
}

.service-subtitle {
    font-weight: 600;
    color: var(--blue) !important;
    font-size: 0.875rem !important;
    margin-bottom: 12px;
}

.service-disciplines {
    list-style: none;
    padding: 0;
    margin-top: 16px;
    border-top: 1px solid var(--gray-200);
    padding-top: 16px;
}

.service-disciplines li {
    font-size: 0.85rem;
    color: var(--gray-600);
    padding: 4px 0;
    padding-left: 16px;
    position: relative;
}

.service-disciplines li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gradient);
    transform: translateY(-50%);
}

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

.service-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--blue);
    text-decoration: none;
    transition: color var(--transition);
}

.service-link:hover {
    color: var(--purple);
}

/* ===== Contact ===== */
.contact-actions {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 600px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--dark);
    transition: all var(--transition);
    border: 1px solid var(--gray-200);
    flex: 1;
    min-width: 240px;
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--blue);
}

.contact-card svg {
    width: 36px;
    height: 36px;
    color: var(--blue);
    flex-shrink: 0;
}

.contact-card strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 2px;
}

.contact-card span {
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* ===== Footer ===== */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--gray-200);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--dark);
}

.footer p {
    font-size: 0.85rem;
    color: var(--gray-400);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        box-shadow: var(--shadow-lg);
        transition: right var(--transition);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .services-grid,
    .services-grid-3 {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .contact-actions {
        flex-direction: column;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}