/* ========================================
   rootbash - Minimalist Landing Page
   Combined CSS for optimal performance
   ======================================== */

/* ========================================
   Base - Variables, Reset & Utilities
   ======================================== */

:root {
    --color-primary: #DFE9F3;
    --color-secondary: #CCDAE7;
    --color-text: #2E3236;
    --color-text-light: #5A6066;
    --color-text-muted: #8A9099;
    --color-white: #FFFFFF;
    --color-black: #1A1D1F;
    --color-border: #E5E9ED;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.06);
    --max-width: 1200px;
    --navbar-height: 72px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-family); font-size: 1rem; line-height: 1.6; color: var(--color-text); background-color: var(--color-white); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: inherit; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-lg); }
.section-eyebrow { font-size: 0.875rem; font-weight: 500; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: var(--spacing-xs); }
.section-title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 600; line-height: 1.2; color: var(--color-text); margin-bottom: var(--spacing-md); }
.section-subtitle { font-size: 1.125rem; color: var(--color-text-light); max-width: 600px; line-height: 1.7; }
.section-header { text-align: center; margin-bottom: var(--spacing-xl); }
.section-header .section-subtitle { margin: 0 auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scrollPulse { 0%, 100% { transform: scaleY(1); opacity: 1; } 50% { transform: scaleY(0.6); opacity: 0.5; } }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* ========================================
   Components - Buttons, Forms, Cards
   ======================================== */

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.875rem 1.75rem; font-size: 0.9375rem; font-weight: 500; border-radius: 9999px; transition: all var(--transition-base); cursor: pointer; }
.btn-primary { background-color: var(--color-text); color: var(--color-white); }
.btn-primary:hover:not(:disabled) { background-color: var(--color-black); transform: translateY(-1px); }
.btn-primary:disabled { background-color: var(--color-text-muted); cursor: not-allowed; opacity: 0.6; }
.btn-secondary { background-color: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background-color: var(--color-primary); border-color: var(--color-primary); }
.btn-full { width: 100%; }

.form-group { margin-bottom: var(--spacing-md); }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; color: var(--color-text); margin-bottom: var(--spacing-xs); }
.form-input { width: 100%; padding: 0.875rem 1rem; font-size: 1rem; color: var(--color-text); background-color: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.form-input:focus { outline: none; border-color: var(--color-text); box-shadow: 0 0 0 3px rgba(46, 50, 54, 0.08); }
.form-input::placeholder { color: var(--color-text-muted); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-hint { margin-top: var(--spacing-sm); text-align: center; font-size: 0.8rem; color: var(--color-text-muted); }
.form-status { margin-top: var(--spacing-sm); text-align: center; font-size: 0.9rem; min-height: 0; }
.form-status:not(:empty) { min-height: 1.5rem; }
.form-status-success { color: #10B981; }
.form-status-error { color: #EF4444; }

/* Button success animation */
.btn-primary .btn-text { display: inline; }
.btn-primary .btn-check { display: none; width: 24px; height: 24px; stroke-dasharray: 24; stroke-dashoffset: 24; }
.btn-primary.btn-success { background-color: #10B981; }
.btn-primary.btn-success .btn-text { display: none; }
.btn-primary.btn-success .btn-check { display: inline-block; animation: checkmark 0.4s ease-out forwards; }
@keyframes checkmark { to { stroke-dashoffset: 0; } }
.g-recaptcha { display: flex; justify-content: center; }

.service-card { padding: var(--spacing-xl); background-color: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); transition: all var(--transition-base); }
.service-card:hover { border-color: var(--color-secondary); transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.service-icon { width: 48px; height: 48px; margin-bottom: var(--spacing-md); color: var(--color-text); }
.service-icon svg { width: 100%; height: 100%; }
.service-title { font-size: 1.125rem; font-weight: 600; margin-bottom: var(--spacing-sm); color: var(--color-text); }
.service-description { font-size: 0.9375rem; color: var(--color-text-light); line-height: 1.6; }

.clients-section { text-align: center; padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.clients-label { font-size: 1.125rem; font-weight: 500; color: var(--color-text-light); margin-bottom: var(--spacing-xl); letter-spacing: 0.02em; }
.clients-carousel { overflow: hidden; position: relative; width: 100%; mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent); -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent); }
.clients-track { display: flex; gap: var(--spacing-2xl); animation: scroll 25s linear infinite; width: max-content; }
.clients-track:hover { animation-play-state: paused; }
.client-logo { flex-shrink: 0; width: 140px; height: 50px; display: flex; align-items: center; justify-content: center; padding: 0 var(--spacing-sm); cursor: pointer; }
.client-logo img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; filter: grayscale(100%) brightness(0.4) contrast(1.2); opacity: 0.7; transition: all var(--transition-base); }
.client-logo:hover img { filter: grayscale(0%) brightness(1) contrast(1); opacity: 1; }

.fab-whatsapp { position: fixed; bottom: var(--spacing-lg); right: var(--spacing-lg); width: 56px; height: 56px; background-color: #25D366; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--color-white); box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4); transition: all var(--transition-base); z-index: 999; }
.fab-whatsapp:hover { background-color: #20bd5a; transform: scale(1.1); box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5); }
.fab-whatsapp svg { width: 28px; height: 28px; }

/* ========================================
   Sections - Navigation, Hero, etc.
   ======================================== */

.navbar { position: fixed; top: 0; left: 0; right: 0; height: var(--navbar-height); background-color: rgba(255, 255, 255, 0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); z-index: 1000; transition: box-shadow var(--transition-base); }
.navbar.scrolled { box-shadow: 0 1px 0 var(--color-border); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-lg); }
.nav-logo { font-size: 1.25rem; font-weight: 600; color: var(--color-text); letter-spacing: -0.02em; }
.nav-logo .cursor { color: var(--color-text-muted); animation: blink 1s step-end infinite; }
.nav-menu { display: flex; align-items: center; gap: var(--spacing-xl); }
.nav-link { font-size: 0.9375rem; font-weight: 400; color: var(--color-text-light); transition: color var(--transition-fast); }
.nav-link:hover { color: var(--color-text); }
.nav-cta { padding: 0.625rem 1.25rem; background-color: var(--color-text); color: var(--color-white) !important; border-radius: 9999px; }
.nav-cta:hover { background-color: var(--color-black); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background-color: var(--color-text); transition: all var(--transition-base); }

.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: calc(var(--navbar-height) + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-xl); position: relative; }
.hero-content { max-width: 800px; padding-bottom: 100px; margin-top: -80px; animation: fadeInUp 0.8s ease-out; }
.hero-eyebrow { font-size: 0.875rem; font-weight: 500; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: var(--spacing-md); }
.hero-title { font-size: clamp(2.5rem, 7vw, 4.5rem); font-weight: 600; line-height: 1.1; letter-spacing: -0.03em; color: var(--color-text); margin-bottom: var(--spacing-lg); }
.hero-title-accent { color: var(--color-text-light); }
.hero-subtitle { font-size: clamp(1rem, 2vw, 1.25rem); color: var(--color-text-light); line-height: 1.7; margin-bottom: var(--spacing-xl); max-width: 600px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: var(--spacing-sm); justify-content: center; flex-wrap: wrap; }
.hero-scroll { position: absolute; bottom: var(--spacing-xl); left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: var(--spacing-xs); animation: fadeIn 1s ease-out 0.5s both; }
.hero-scroll span { font-size: 0.75rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.scroll-indicator { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--color-text-muted), transparent); animation: scrollPulse 2s ease-in-out infinite; }

.services { padding: var(--spacing-3xl) 0; background-color: var(--color-white); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }

.methodology { padding: var(--spacing-3xl) 0; background-color: var(--color-primary); }
.methodology-timeline { max-width: 800px; margin: 0 auto; }
.methodology-step { display: flex; gap: var(--spacing-xl); padding: var(--spacing-xl) 0; border-bottom: 1px solid var(--color-secondary); }
.methodology-step:last-child { border-bottom: none; }
.step-number { font-size: 0.875rem; font-weight: 600; color: var(--color-text-muted); min-width: 40px; }
.step-content { flex: 1; }
.step-title { font-size: 1.25rem; font-weight: 600; color: var(--color-text); margin-bottom: var(--spacing-sm); }
.step-description { font-size: 1rem; color: var(--color-text-light); line-height: 1.7; }

/* Why Us Section */
.why-us { padding: var(--spacing-3xl) 0; background-color: var(--color-white); }
.why-us-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
.why-us-item { padding: var(--spacing-lg); }
.why-us-icon { width: 48px; height: 48px; margin-bottom: var(--spacing-md); color: var(--color-text); }
.why-us-icon svg { width: 100%; height: 100%; }
.why-us-item h3 { font-size: 1.125rem; font-weight: 600; color: var(--color-text); margin-bottom: var(--spacing-sm); }
.why-us-item p { font-size: 0.9375rem; color: var(--color-text-light); line-height: 1.7; }

/* FAQ Section */
.faq { padding: var(--spacing-3xl) 0; background-color: var(--color-white); }
.faq .section-header { margin-bottom: var(--spacing-xl); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { width: 100%; padding: var(--spacing-lg) 0; font-size: 1.125rem; font-weight: 500; color: var(--color-text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; list-style: none; }
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after { content: '+'; font-size: 1.5rem; font-weight: 300; color: var(--color-text-muted); transition: transform var(--transition-base); }
.faq-item[open] .faq-question::after { transform: rotate(45deg); }
.faq-answer { padding-bottom: var(--spacing-lg); }
.faq-answer p { font-size: 1rem; color: var(--color-text-light); line-height: 1.8; }
.faq-answer strong { color: var(--color-text); }

.team { padding: var(--spacing-3xl) 0; background-color: var(--color-primary); }
.team-stats { display: flex; justify-content: center; gap: var(--spacing-3xl); margin-bottom: var(--spacing-3xl); flex-wrap: wrap; }
.stat { text-align: center; }
.stat-number { display: block; font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 600; color: var(--color-text); line-height: 1; margin-bottom: var(--spacing-xs); }
.stat-label { font-size: 0.875rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.team-certifications { text-align: center; padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.certifications-label { font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: var(--spacing-md); }
.certifications-list { display: flex; justify-content: center; gap: var(--spacing-sm); flex-wrap: wrap; }

.contact { padding: var(--spacing-3xl) 0; background-color: var(--color-primary); }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-3xl); align-items: start; }
.contact-info .section-title { text-align: left; }
.contact-description { font-size: 1rem; color: var(--color-text-light); line-height: 1.7; margin-bottom: var(--spacing-xl); }
.contact-details { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.contact-link { display: inline-flex; align-items: center; gap: var(--spacing-sm); font-size: 1rem; color: var(--color-text); transition: color var(--transition-fast); font-style: normal; }
.contact-link:hover { color: var(--color-text-light); }
.contact-link svg { width: 20px; height: 20px; }
.contact-form { background-color: var(--color-white); padding: var(--spacing-xl); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); max-width: 100%; overflow: hidden; }

.footer { padding: var(--spacing-2xl) 0 var(--spacing-xl); background-color: var(--color-white); border-top: 1px solid var(--color-border); }
.footer-content { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--spacing-xl); }
.footer-logo { font-size: 1.125rem; font-weight: 600; color: var(--color-text); }
.footer-tagline { font-size: 0.875rem; color: var(--color-text-muted); margin-top: var(--spacing-xs); }
.footer-links { display: flex; gap: var(--spacing-lg); }
.footer-links a { font-size: 0.875rem; color: var(--color-text-light); transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--color-text); }
.footer-social { display: flex; gap: var(--spacing-md); }
.footer-social a { color: var(--color-text-light); transition: color var(--transition-fast); }
.footer-social a:hover { color: var(--color-text); }
.footer-bottom { text-align: center; padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.footer-bottom p { font-size: 0.8125rem; color: var(--color-text-muted); }

/* ========================================
   Responsive Design
   ======================================== */

@media (min-width: 1025px) {
    .team .section-subtitle { max-width: 800px; }
}

@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .why-us-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-wrapper { grid-template-columns: 1fr; gap: var(--spacing-2xl); }
    .contact-info .section-header { text-align: left; }
}

@media (max-width: 768px) {
    :root { --spacing-3xl: 5rem; }
    .nav-menu { position: fixed; top: var(--navbar-height); left: 0; right: 0; bottom: 0; flex-direction: column; align-items: center; justify-content: center; gap: var(--spacing-lg); background-color: var(--color-white); opacity: 0; visibility: hidden; transition: opacity var(--transition-base), visibility var(--transition-base); }
    .nav-menu.active { opacity: 1; visibility: visible; }
    .nav-link { font-size: 1.25rem; }
    .nav-toggle { display: flex; }
    .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); }
    .services-grid { grid-template-columns: 1fr; }
    .why-us-grid { grid-template-columns: 1fr; }
    .methodology-step { flex-direction: column; gap: var(--spacing-sm); }
    .team-stats { gap: var(--spacing-xl); }
    .contact-form { padding: var(--spacing-lg); }
    .footer-content { flex-direction: column; gap: var(--spacing-lg); text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
    .footer-social { justify-content: center; }
}

@media (max-width: 480px) {
    :root { --spacing-lg: 1.5rem; --spacing-xl: 2rem; --spacing-2xl: 3rem; --spacing-3xl: 4rem; }
    .container { padding: 0 1rem; }
    .contact-form { padding: 1rem; box-sizing: border-box; }
    .form-input { padding: 0.75rem; box-sizing: border-box; }
    .g-recaptcha { transform: scale(0.85); transform-origin: center center; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .service-card { padding: var(--spacing-lg); }
}

@media (max-width: 400px) {
    .container { padding: 0 0.75rem; }
    .contact-form { padding: 0.75rem; }
    .g-recaptcha { transform: scale(0.77); transform-origin: center center; }
}