/* ═══════════════════════════════════════════════════════════════
   SOFT TECH ELECTRONICS — Ultimate Design System v3.0
   Modern SaaS-grade UI · Mobile-first · Conversion-optimized
   ═══════════════════════════════════════════════════════════════ */

:root {
    --ste-navy-900: #0a1628;
    --ste-navy-800: #0f172a;
    --ste-navy-700: #1e293b;
    --ste-blue-900: #1e3a8a;
    --ste-blue-600: #2563eb;
    --ste-blue-500: #3b82f6;
    --ste-emerald-600: #059669;
    --ste-emerald-500: #10b981;
    --ste-emerald-400: #34d399;
    --ste-emerald-300: #6ee7b7;
    --ste-whatsapp: #25D366;
    --ste-amber-500: #f59e0b;
    --ste-red-500: #ef4444;
    --ste-slate-50: #f8fafc;
    --ste-slate-100: #f1f5f9;
    --ste-slate-200: #e2e8f0;
    --ste-slate-300: #cbd5e1;
    --ste-slate-400: #94a3b8;
    --ste-slate-500: #64748b;
    --ste-slate-600: #475569;
    --ste-slate-700: #334155;
    --ste-slate-800: #1e293b;
    --ste-slate-900: #0f172a;
    --ste-shadow-xs: 0 1px 2px 0 rgba(0,0,0,.05);
    --ste-shadow-sm: 0 1px 3px 0 rgba(0,0,0,.1), 0 1px 2px -1px rgba(0,0,0,.1);
    --ste-shadow: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
    --ste-shadow-md: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
    --ste-shadow-lg: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.1);
    --ste-shadow-xl: 0 25px 50px -12px rgba(0,0,0,.25);
    --ste-shadow-glow: 0 0 0 1px rgba(16,185,129,.2), 0 8px 32px -8px rgba(16,185,129,.3);
    --ste-radius-sm: 0.375rem;
    --ste-radius: 0.5rem;
    --ste-radius-md: 0.625rem;
    --ste-radius-lg: 0.875rem;
    --ste-radius-xl: 1rem;
    --ste-radius-2xl: 1.25rem;
    --ste-transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --ste-transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--ste-slate-900);
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}
@media (max-width: 767px) { body { padding-bottom: 76px; } }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--ste-transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }

::selection { background: var(--ste-emerald-500); color: #fff; }

/* ═══════ CONTAINER ═══════ */
.ste-container { max-width: 80rem; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 768px) { .ste-container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .ste-container { padding: 0 2rem; } }

/* ═══════ HEADER / NAVIGATION ═══════ */
.ste-topbar {
    background: linear-gradient(90deg, var(--ste-navy-900) 0%, var(--ste-navy-700) 100%);
    color: #fff;
    font-size: 0.8125rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ste-topbar__inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.ste-topbar a { color: #fff; opacity: 0.9; }
.ste-topbar a:hover { opacity: 1; text-decoration: underline; }

.ste-header {
    position: sticky; top: 0; z-index: 40;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--ste-slate-200);
    transition: box-shadow var(--ste-transition);
}
.ste-header--scrolled { box-shadow: var(--ste-shadow-md); }
.ste-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.75rem 0; }
.ste-logo { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }
.ste-logo__img { height: 44px; width: auto; }
.ste-logo__text { display: none; font-weight: 800; line-height: 1.15; color: var(--ste-slate-900); letter-spacing: -0.01em; }
.ste-logo__text small { display: block; font-size: 0.75rem; font-weight: 500; color: var(--ste-slate-500); letter-spacing: 0; margin-top: 1px; }
@media (min-width: 640px) { .ste-logo__text { display: block; } }

.ste-nav { display: none; gap: 0.125rem; align-items: center; }
@media (min-width: 1024px) { .ste-nav { display: flex; } }
.ste-nav__link {
    padding: 0.5rem 0.875rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--ste-slate-700);
    border-radius: var(--ste-radius);
    transition: all var(--ste-transition);
    position: relative;
}
.ste-nav__link:hover { color: var(--ste-blue-600); background: var(--ste-slate-50); }
.ste-nav__link--active { color: var(--ste-emerald-600); }
.ste-nav__link--active::after {
    content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
    width: 20px; height: 2px; background: var(--ste-emerald-500); border-radius: 2px;
}
.ste-menu-btn {
    display: flex; align-items: center; justify-content: center;
    padding: 0.625rem; border-radius: var(--ste-radius);
    background: transparent; border: 1.5px solid var(--ste-slate-200);
    color: var(--ste-slate-700);
    transition: all var(--ste-transition);
}
.ste-menu-btn:hover { background: var(--ste-slate-50); border-color: var(--ste-slate-300); }
@media (min-width: 1024px) { .ste-menu-btn { display: none; } }

#mobile-nav {
    border-top: 1px solid var(--ste-slate-200);
    background: #fff;
    box-shadow: var(--ste-shadow-md);
    animation: ste-slide-down 0.2s ease-out;
}
@keyframes ste-slide-down { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
#mobile-nav a { display: block; padding: 0.75rem 1rem; border-radius: var(--ste-radius); font-weight: 500; }
#mobile-nav a:hover { background: var(--ste-slate-50); }

/* ═══════ CALL CTA ═══════ */
.call-cta {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.625rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--ste-radius-md);
    background: linear-gradient(135deg, var(--ste-emerald-600) 0%, var(--ste-emerald-500) 100%);
    color: #fff !important;
    font-weight: 700; font-size: 0.9375rem;
    transition: all var(--ste-transition);
    box-shadow: 0 4px 14px rgba(16,185,129,0.3);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}
.call-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(16,185,129,0.4); }
.call-cta:active { transform: translateY(0); }
.call-cta svg { width: 20px; height: 20px; flex-shrink: 0; }
.call-cta--lg { padding: 1rem 2rem; font-size: 1.125rem; gap: 0.75rem; }
.call-cta--lg svg { width: 24px; height: 24px; }
.call-cta--sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.call-cta--sm svg { width: 16px; height: 16px; }
.call-cta--pulse::before {
    content: ''; position: absolute; inset: 0; border-radius: inherit;
    background: var(--ste-emerald-500); opacity: 0; animation: ste-pulse 2s infinite;
}
@keyframes ste-pulse {
    0% { opacity: 0; transform: scale(1); }
    50% { opacity: 0.35; transform: scale(1.06); }
    100% { opacity: 0; transform: scale(1.12); }
}

/* ═══════ BUTTONS ═══════ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--ste-radius-md);
    font-weight: 600; font-size: 0.9375rem;
    border: none;
    transition: all var(--ste-transition);
    cursor: pointer; text-align: center; white-space: nowrap;
}
.btn--primary { background: var(--ste-blue-600); color: #fff; }
.btn--primary:hover { background: #1d4ed8; transform: translateY(-1px); box-shadow: var(--ste-shadow-md); }
.btn--whatsapp { background: var(--ste-whatsapp); color: #fff; }
.btn--whatsapp:hover { background: #20bd5a; transform: translateY(-1px); box-shadow: var(--ste-shadow-md); }
.btn--outline { background: transparent; border: 2px solid var(--ste-slate-300); color: var(--ste-slate-700); }
.btn--outline:hover { border-color: var(--ste-blue-600); color: var(--ste-blue-600); background: var(--ste-slate-50); }
.btn--ghost { background: transparent; color: var(--ste-emerald-600); }
.btn--ghost:hover { background: var(--ste-emerald-500); color: #fff; }
.btn--lg { padding: 1rem 2rem; font-size: 1.125rem; }
.btn--sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn--full { width: 100%; }

/* ═══════ HERO ═══════ */
.ste-hero {
    background: linear-gradient(135deg, var(--ste-navy-900) 0%, var(--ste-navy-700) 50%, var(--ste-blue-900) 100%);
    color: #fff;
    padding: 3rem 1rem 4rem;
    position: relative; overflow: hidden;
}
@media (min-width: 768px) { .ste-hero { padding: 5rem 1.5rem 6rem; } }
.ste-hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle at 20% 30%, rgba(16,185,129,0.15) 0%, transparent 50%),
                      radial-gradient(circle at 80% 70%, rgba(37,99,235,0.12) 0%, transparent 50%);
    pointer-events: none;
}
.ste-hero::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(16,185,129,0.5), transparent);
}
.ste-hero__inner { position: relative; display: grid; gap: 3rem; align-items: center; }
@media (min-width: 1024px) { .ste-hero__inner { grid-template-columns: 1.15fr 1fr; gap: 4rem; } }
.ste-hero__badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.375rem 0.875rem;
    background: rgba(16,185,129,0.15);
    border: 1px solid rgba(16,185,129,0.35);
    color: var(--ste-emerald-300);
    font-size: 0.8125rem; font-weight: 600;
    border-radius: 9999px; margin-bottom: 1.25rem;
    backdrop-filter: blur(8px);
}
.ste-hero__badge::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--ste-emerald-400);
    animation: ste-blink 1.8s infinite;
}
@keyframes ste-blink {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52,211,153,0.7); }
    50% { opacity: 0.6; box-shadow: 0 0 0 6px rgba(52,211,153,0); }
}
.ste-hero__h1 {
    font-size: 2rem; font-weight: 800;
    line-height: 1.1; margin-bottom: 1.25rem;
    letter-spacing: -0.025em;
}
@media (min-width: 768px) { .ste-hero__h1 { font-size: 3rem; } }
@media (min-width: 1024px) { .ste-hero__h1 { font-size: 3.75rem; } }
.ste-hero__h1 span {
    display: block; color: var(--ste-emerald-300);
    font-size: 0.72em; font-weight: 600;
    margin-top: 0.75rem; letter-spacing: -0.01em;
}
.ste-hero__lead {
    font-size: 1.125rem; color: #cbd5e1;
    margin-bottom: 2rem; max-width: 36rem;
    line-height: 1.7;
}
.ste-hero__actions { display: flex; flex-wrap: wrap; gap: 0.875rem; margin-bottom: 1.75rem; }
.ste-hero__note {
    font-size: 0.875rem; color: #94a3b8;
    display: flex; align-items: center; gap: 0.5rem;
}
.ste-hero__note::before { content: '✓'; color: var(--ste-emerald-400); font-weight: 700; font-size: 1rem; }
.ste-hero__visual { position: relative; }
.ste-hero__visual img {
    border-radius: var(--ste-radius-2xl);
    box-shadow: var(--ste-shadow-xl);
    width: 100%; height: auto;
    position: relative; z-index: 1;
}
.ste-hero__visual::before {
    content: ''; position: absolute; inset: -20px;
    background: linear-gradient(135deg, var(--ste-emerald-500), var(--ste-blue-600));
    border-radius: var(--ste-radius-2xl);
    opacity: 0.15; filter: blur(40px); z-index: 0;
}

/* ═══════ TRUST BAR ═══════ */
.ste-trust-bar {
    background: #fff;
    border-bottom: 1px solid var(--ste-slate-200);
    padding: 1.75rem 0;
    position: relative;
}
.ste-trust-bar__inner { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media (min-width: 768px) { .ste-trust-bar__inner { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; } }
.ste-trust-item { display: flex; align-items: center; gap: 0.875rem; }
.ste-trust-item__icon {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--ste-emerald-500) 0%, var(--ste-emerald-600) 100%);
    color: #fff;
    border-radius: var(--ste-radius-md);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(16,185,129,0.25);
}
.ste-trust-item__label { font-weight: 700; font-size: 0.9375rem; line-height: 1.2; color: var(--ste-slate-900); }
.ste-trust-item__sub { font-size: 0.75rem; color: var(--ste-slate-500); margin-top: 2px; }

/* ═══════ SECTIONS ═══════ */
.ste-section { padding: 3.5rem 1rem; }
@media (min-width: 768px) { .ste-section { padding: 5rem 1.5rem; } }
.ste-section--alt { background: var(--ste-slate-50); }
.ste-section__head { text-align: center; margin-bottom: 3rem; max-width: 42rem; margin-left: auto; margin-right: auto; }
.ste-section__title {
    font-size: 1.875rem; font-weight: 800;
    margin-bottom: 0.875rem; color: var(--ste-slate-900);
    letter-spacing: -0.02em; line-height: 1.2;
}
@media (min-width: 768px) { .ste-section__title { font-size: 2.5rem; } }
.ste-section__subtitle { font-size: 1.0625rem; color: var(--ste-slate-500); line-height: 1.6; }
.ste-eyebrow {
    display: inline-block;
    color: var(--ste-emerald-600);
    font-weight: 700; font-size: 0.8125rem;
    text-transform: uppercase; letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}

/* ═══════ SERVICE CARD ═══════ */
.ste-service-card {
    background: #fff;
    border: 1px solid var(--ste-slate-200);
    border-radius: var(--ste-radius-xl);
    padding: 1.75rem;
    transition: all var(--ste-transition-slow);
    position: relative; overflow: hidden;
    display: flex; flex-direction: column;
    height: 100%;
}
.ste-service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--ste-emerald-500), var(--ste-blue-600));
    transform: scaleX(0); transform-origin: left;
    transition: transform var(--ste-transition-slow);
}
.ste-service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--ste-shadow-xl);
    border-color: var(--ste-emerald-500);
}
.ste-service-card:hover::before { transform: scaleX(1); }
.ste-service-card__icon {
    width: 60px; height: 60px;
    background: linear-gradient(135deg, var(--ste-emerald-500) 0%, var(--ste-emerald-600) 100%);
    color: #fff;
    border-radius: var(--ste-radius-lg);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.625rem;
    box-shadow: 0 6px 20px rgba(16,185,129,0.3);
}
.ste-service-card__title { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.625rem; line-height: 1.3; }
.ste-service-card__title a { color: var(--ste-slate-900); }
.ste-service-card__title a:hover { color: var(--ste-blue-600); }
.ste-service-card__desc { color: var(--ste-slate-500); font-size: 0.9375rem; margin-bottom: 1.5rem; flex: 1; line-height: 1.6; }
.ste-service-card__footer { display: flex; gap: 0.625rem; margin-top: auto; }
.ste-service-card__footer .call-cta { flex: 1; padding: 0.625rem 1rem; font-size: 0.875rem; }

/* ═══════ AREA CARD ═══════ */
.ste-area-card {
    display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
    padding: 1.125rem 1.25rem;
    background: #fff;
    border: 1px solid var(--ste-slate-200);
    border-radius: var(--ste-radius-md);
    transition: all var(--ste-transition);
}
.ste-area-card:hover {
    border-color: var(--ste-blue-600);
    box-shadow: var(--ste-shadow-md);
    transform: translateX(4px);
    background: linear-gradient(90deg, #fff 0%, var(--ste-slate-50) 100%);
}
.ste-area-card__name { font-weight: 700; font-size: 0.9375rem; color: var(--ste-slate-900); }
.ste-area-card__pincode { font-size: 0.75rem; color: var(--ste-slate-500); margin-top: 2px; }
.ste-area-card__arrow {
    color: var(--ste-blue-600); font-weight: 700; font-size: 1.125rem;
    transition: transform var(--ste-transition);
}
.ste-area-card:hover .ste-area-card__arrow { transform: translateX(4px); }

/* ═══════ FAQ ═══════ */
.ste-faq {
    background: #fff;
    border: 1px solid var(--ste-slate-200);
    border-radius: var(--ste-radius-lg);
    overflow: hidden;
    margin-bottom: 0.75rem;
    transition: all var(--ste-transition);
}
.ste-faq[open] { border-color: var(--ste-emerald-500); box-shadow: var(--ste-shadow-md); }
.ste-faq summary {
    padding: 1.25rem 1.5rem;
    font-weight: 600; cursor: pointer; list-style: none;
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    font-size: 1.0625rem; color: var(--ste-slate-900);
    transition: color var(--ste-transition);
}
.ste-faq summary:hover { color: var(--ste-emerald-600); }
.ste-faq summary::-webkit-details-marker { display: none; }
.ste-faq summary::after {
    content: ''; flex-shrink: 0;
    width: 20px; height: 20px;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2310b981'%3E%3Cpath fill-rule='evenodd' d='M10 3a1 1 0 011 1v5h5a1 1 0 110 2h-5v5a1 1 0 11-2 0v-5H4a1 1 0 110-2h5V4a1 1 0 011-1z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-size: contain; background-repeat: no-repeat;
    transition: transform var(--ste-transition);
}
.ste-faq[open] summary::after { transform: rotate(45deg); }
.ste-faq__body { padding: 0 1.5rem 1.5rem; color: var(--ste-slate-600); line-height: 1.75; font-size: 1rem; }

/* ═══════ GRIDS ═══════ */
.ste-grid { display: grid; gap: 1.5rem; }
.ste-grid--2 { grid-template-columns: 1fr; }
.ste-grid--3 { grid-template-columns: 1fr; }
.ste-grid--4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
    .ste-grid--2, .ste-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
    .ste-grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .ste-grid--3 { grid-template-columns: repeat(3, 1fr); }
    .ste-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ═══════ FOOTER ═══════ */
.ste-footer {
    background: var(--ste-navy-900);
    color: #cbd5e1;
    padding: 4rem 1rem 2rem;
    position: relative;
}
.ste-footer::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(16,185,129,0.4), transparent);
}
.ste-footer__grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .ste-footer__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .ste-footer__grid { grid-template-columns: 2.5fr 1fr 1fr 1.25fr; gap: 3rem; } }
.ste-footer__brand h3 { color: #fff; font-weight: 800; margin-bottom: 1rem; font-size: 1.125rem; }
.ste-footer__brand p { font-size: 0.875rem; line-height: 1.7; margin-bottom: 1.5rem; color: #94a3b8; }
.ste-footer h4 { color: #fff; font-weight: 700; margin-bottom: 1rem; font-size: 0.9375rem; }
.ste-footer ul { list-style: none; }
.ste-footer li { margin-bottom: 0.625rem; }
.ste-footer a { color: #94a3b8; font-size: 0.875rem; transition: color var(--ste-transition); }
.ste-footer a:hover { color: var(--ste-emerald-400); }
.ste-footer__bottom {
    margin-top: 3rem; padding-top: 2rem;
    border-top: 1px solid rgba(148,163,184,0.15);
    text-align: center; font-size: 0.8125rem; color: #64748b;
}

/* ═══════ STICKY MOBILE BAR ═══════ */
.sticky-mobile-bar {
    position: fixed; bottom: 0; left: 0; right: 0;
    display: grid; grid-template-columns: 2fr 1fr 1fr;
    gap: 1px; background: rgba(255,255,255,0.1);
    box-shadow: 0 -8px 32px rgba(0,0,0,0.15);
    z-index: 9999;
    padding-bottom: env(safe-area-inset-bottom, 0);
    backdrop-filter: blur(12px);
}
@media (min-width: 768px) { .sticky-mobile-bar { display: none; } }
.sticky-cta {
    display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.875rem 0.5rem; min-height: 68px;
    color: #fff !important; font-weight: 700; font-size: 0.875rem;
    transition: transform var(--ste-transition);
    position: relative;
}
.sticky-cta:active { transform: scale(0.96); }
.sticky-cta--primary { background: linear-gradient(135deg, var(--ste-emerald-600), var(--ste-emerald-500)); }
.sticky-cta--whatsapp { background: var(--ste-whatsapp); }
.sticky-cta--book { background: var(--ste-blue-900); }
.sticky-cta svg { width: 22px; height: 22px; flex-shrink: 0; }
.sticky-cta__label { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.15; }
.sticky-cta__label strong { font-weight: 700; }
.sticky-cta__label small { font-size: 10px; opacity: 0.85; font-weight: 400; margin-top: 1px; }

/* ═══════ WHATSAPP FLOAT ═══════ */
.ste-wa-float {
    position: fixed; bottom: 5rem; right: 1.25rem; z-index: 9998;
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--ste-whatsapp);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 24px rgba(37,211,102,0.4);
    transition: all var(--ste-transition);
}
.ste-wa-float:hover { transform: scale(1.1) rotate(-3deg); box-shadow: 0 12px 32px rgba(37,211,102,0.5); }
.ste-wa-float svg { width: 28px; height: 28px; }
@media (min-width: 768px) { .ste-wa-float { bottom: 2rem; right: 2rem; } }

/* ═══════ TOAST ═══════ */
.ste-toast-container {
    position: fixed; top: 1rem; right: 1rem;
    z-index: 10000; display: flex; flex-direction: column; gap: 0.5rem;
    max-width: 24rem;
}
.ste-toast {
    padding: 1rem 1.25rem;
    background: #fff;
    border-radius: var(--ste-radius-md);
    box-shadow: var(--ste-shadow-xl);
    border-left: 4px solid var(--ste-blue-600);
    font-size: 0.9375rem; font-weight: 500;
    animation: ste-slide-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.ste-toast--success { border-left-color: var(--ste-emerald-500); }
.ste-toast--error { border-left-color: var(--ste-red-500); }
@keyframes ste-slide-in {
    from { transform: translateX(110%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ═══════ BREADCRUMBS ═══════ */
.ste-breadcrumbs { font-size: 0.875rem; color: var(--ste-slate-400); padding: 1rem 0; }
.ste-breadcrumbs a { color: var(--ste-emerald-300); }
.ste-breadcrumbs a:hover { text-decoration: underline; color: #fff; }
.ste-breadcrumbs span { margin: 0 0.5rem; }

/* ═══════ FORM FIELDS ═══════ */
.ste-field { margin-bottom: 1.25rem; }
.ste-field label { display: block; font-weight: 600; font-size: 0.9375rem; margin-bottom: 0.5rem; color: var(--ste-slate-700); }
.ste-field input, .ste-field select, .ste-field textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--ste-slate-200);
    border-radius: var(--ste-radius-md);
    font-size: 1rem;
    transition: all var(--ste-transition);
    background: #fff;
    color: var(--ste-slate-900);
}
.ste-field input:focus, .ste-field select:focus, .ste-field textarea:focus {
    outline: none;
    border-color: var(--ste-emerald-500);
    box-shadow: 0 0 0 4px rgba(16,185,129,0.1);
}
.ste-field input::placeholder, .ste-field textarea::placeholder { color: var(--ste-slate-400); }
.ste-field small { display: block; color: var(--ste-slate-500); font-size: 0.8125rem; margin-top: 0.375rem; }
.ste-field--error input, .ste-field--error select, .ste-field--error textarea { border-color: var(--ste-red-500); }
.ste-field__error { color: var(--ste-red-500); font-size: 0.8125rem; margin-top: 0.375rem; font-weight: 500; }

/* ═══════ STEPPER (BOOKING) ═══════ */
.ste-stepper { display: flex; justify-content: space-between; margin-bottom: 2.5rem; position: relative; }
.ste-step { flex: 1; display: flex; flex-direction: column; align-items: center; position: relative; }
.ste-step__circle {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--ste-slate-200); color: var(--ste-slate-500);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.875rem;
    transition: all var(--ste-transition);
    position: relative; z-index: 1;
}
.ste-step--active .ste-step__circle { background: var(--ste-emerald-500); color: #fff; box-shadow: 0 4px 12px rgba(16,185,129,0.4); }
.ste-step--done .ste-step__circle { background: var(--ste-emerald-500); color: #fff; }
.ste-step__label { font-size: 0.75rem; font-weight: 600; color: var(--ste-slate-500); margin-top: 0.5rem; }
@media (max-width: 767px) { .ste-step__label { display: none; } }
.ste-step--active .ste-step__label { color: var(--ste-slate-900); }
.ste-step__line {
    position: absolute; top: 20px; left: 50%; right: -50%; height: 2px;
    background: var(--ste-slate-200); z-index: 0;
}
.ste-step:last-child .ste-step__line { display: none; }
.ste-step--done .ste-step__line { background: var(--ste-emerald-500); }

/* ═══════ BLOG CARD ═══════ */
.ste-blog-card {
    display: flex; flex-direction: column;
    background: #fff;
    border: 1px solid var(--ste-slate-200);
    border-radius: var(--ste-radius-xl);
    overflow: hidden;
    transition: all var(--ste-transition-slow);
    height: 100%;
}
.ste-blog-card:hover { transform: translateY(-4px); box-shadow: var(--ste-shadow-xl); border-color: var(--ste-emerald-500); }
.ste-blog-card__image { width: 100%; height: 200px; object-fit: cover; background: var(--ste-slate-100); }
.ste-blog-card__body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.ste-blog-card__date { font-size: 0.75rem; color: var(--ste-slate-500); margin-bottom: 0.5rem; font-weight: 500; }
.ste-blog-card__title { font-size: 1.125rem; font-weight: 700; margin-bottom: 0.75rem; line-height: 1.35; }
.ste-blog-card__title a { color: var(--ste-slate-900); }
.ste-blog-card__title a:hover { color: var(--ste-blue-600); }
.ste-blog-card__excerpt { color: var(--ste-slate-500); font-size: 0.9375rem; margin-bottom: 1rem; flex: 1; line-height: 1.6; }
.ste-blog-card__link { color: var(--ste-blue-600); font-weight: 600; font-size: 0.875rem; }
.ste-blog-card__link:hover { text-decoration: underline; }

/* ═══════ PROSE (article content) ═══════ */
.ste-prose { font-size: 1.0625rem; line-height: 1.8; color: var(--ste-slate-700); }
.ste-prose h2 { font-size: 1.75rem; font-weight: 800; color: var(--ste-slate-900); margin: 2.5rem 0 1rem; line-height: 1.25; letter-spacing: -0.015em; }
.ste-prose h3 { font-size: 1.375rem; font-weight: 700; color: var(--ste-slate-900); margin: 2rem 0 0.75rem; line-height: 1.3; }
.ste-prose h4 { font-size: 1.125rem; font-weight: 700; color: var(--ste-slate-900); margin: 1.5rem 0 0.5rem; }
.ste-prose p { margin-bottom: 1.25rem; }
.ste-prose ul, .ste-prose ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.ste-prose li { margin-bottom: 0.5rem; }
.ste-prose ul li::marker { color: var(--ste-emerald-500); }
.ste-prose strong { color: var(--ste-slate-900); font-weight: 700; }
.ste-prose a { color: var(--ste-blue-600); text-decoration: underline; text-decoration-color: rgba(37,99,235,0.3); text-underline-offset: 3px; }
.ste-prose a:hover { text-decoration-color: var(--ste-blue-600); }
.ste-prose img { border-radius: var(--ste-radius-lg); margin: 1.5rem 0; }
.ste-prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.9375rem; }
.ste-prose table th { background: var(--ste-slate-50); text-align: left; padding: 0.75rem 1rem; font-weight: 700; border-bottom: 2px solid var(--ste-slate-200); }
.ste-prose table td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--ste-slate-200); }
.ste-prose blockquote { border-left: 4px solid var(--ste-emerald-500); padding: 0.5rem 0 0.5rem 1.5rem; margin: 1.5rem 0; font-style: italic; color: var(--ste-slate-600); }

/* ═══════ UTILITIES ═══════ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-slate-500 { color: var(--ste-slate-500); }
.text-slate-600 { color: var(--ste-slate-600); }
.text-slate-700 { color: var(--ste-slate-700); }
.text-emerald { color: var(--ste-emerald-600); }
.text-white { color: #fff; }
.bg-white { background: #fff; }
.bg-slate-50 { background: var(--ste-slate-50); }
.bg-emerald-50 { background: #ecfdf5; }
.bg-navy { background: var(--ste-navy-900); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.mb-1 { margin-bottom: 0.25rem; } .mb-2 { margin-bottom: 0.5rem; } .mb-3 { margin-bottom: 0.75rem; } .mb-4 { margin-bottom: 1rem; } .mb-6 { margin-bottom: 1.5rem; } .mb-8 { margin-bottom: 2rem; }
.mt-1 { margin-top: 0.25rem; } .mt-2 { margin-top: 0.5rem; } .mt-3 { margin-top: 0.75rem; } .mt-4 { margin-top: 1rem; } .mt-6 { margin-top: 1.5rem; } .mt-8 { margin-top: 2rem; }
.rounded { border-radius: var(--ste-radius); }
.rounded-lg { border-radius: var(--ste-radius-md); }
.rounded-xl { border-radius: var(--ste-radius-lg); }
.rounded-2xl { border-radius: var(--ste-radius-xl); }
.rounded-full { border-radius: 9999px; }
.hidden { display: none !important; }
.shadow { box-shadow: var(--ste-shadow); }
.shadow-lg { box-shadow: var(--ste-shadow-lg); }
.shadow-xl { box-shadow: var(--ste-shadow-xl); }
.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; }
.sr-only:focus { position: static; width: auto; height: auto; padding: 0.5rem 1rem; margin: 0; overflow: visible; clip: auto; background: var(--ste-blue-600); color: #fff; border-radius: var(--ste-radius); z-index: 100; }

/* ═══════ PRINT ═══════ */
@media print {
    .ste-header, .ste-topbar, .sticky-mobile-bar, .ste-wa-float, .call-cta, .ste-footer, .ste-toast-container { display: none !important; }
    body { padding: 0; }
    .ste-hero { background: #fff !important; color: #000 !important; padding: 1rem 0; }
    .ste-hero__h1, .ste-hero__lead { color: #000 !important; }
}

/* ═══════ ACCESSIBILITY ═══════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}