/* ==========================================================================
   InstaMed Theme — main.css
   Color tokens match the brief: trust-blue primary, calm-purple secondary,
   reassuring teal accent. 8-pt spacing system. Generous touch targets.
   ========================================================================== */

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

:root {
    /* Color palette — InstaMed brand */
    --primary:        #1E88E5;
    --primary-dark:   #1565C0;
    --primary-light:  #BBDEFB;
    --secondary:      #5E35B1;
    --secondary-dark: #4527A0;
    --accent:         #00BFA6;
    --accent-dark:    #009688;

    --success: #2E7D32;
    --warning: #ED6C02;
    --error:   #D32F2F;

    --light-bg: #F0F7FF;
    --white:    #FFFFFF;
    --gray-50:  #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;

    /* Spacing — 8-pt grid */
    --space-xs:  0.5rem;
    --space-sm:  1rem;
    --space-md:  1.5rem;
    --space-lg:  2rem;
    --space-xl:  3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(15,23,42,0.05);
    --shadow-md: 0 4px 6px rgba(15,23,42,0.07);
    --shadow-lg: 0 10px 15px rgba(15,23,42,0.10);
    --shadow-xl: 0 20px 25px rgba(15,23,42,0.10);
    --shadow-glow: 0 0 0 4px rgba(30,136,229,0.15);

    /* Radii */
    --radius-sm:   6px;
    --radius-md:   10px;
    --radius-lg:   14px;
    --radius-xl:   20px;
    --radius-full: 9999px;

    /* Animation */
    --transition: 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: inherit;
    color: var(--gray-900);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 800; }
h2 { font-size: clamp(1.875rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 600; }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); font-weight: 600; }

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

/* Skip link */
.screen-reader-text {
    position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
    position: absolute; left: 1rem; top: 1rem; width: auto; height: auto;
    padding: 0.5rem 1rem; background: var(--primary); color: var(--white);
    border-radius: var(--radius-sm); z-index: 9999;
}

/* Utility */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-lg); }
.container-narrow { max-width: 760px; }

.fade-in { animation: fadeIn 0.6s ease both; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem; font-weight: 600;
    border: 1px solid transparent; border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    min-height: 44px;
}
.btn:focus-visible { outline: none; box-shadow: var(--shadow-glow); }

.btn-lg { padding: 1rem 2rem; font-size: 1rem; min-height: 52px; }
.btn-block { width: 100%; }

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
}
.btn-secondary:hover { background: var(--secondary-dark); color: var(--white); }

.btn-ghost {
    background: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
}
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-900); border-color: var(--gray-400); }

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

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,0.95); backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }

.nav-container {
    max-width: 1400px; margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--space-md);
}

.logo {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 1.25rem; font-weight: 800; color: var(--gray-900);
    letter-spacing: -0.02em;
}
.logo:hover { color: var(--gray-900); }
.logo-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white); border-radius: var(--radius-md);
    font-weight: 800; font-size: 1.25rem; line-height: 1;
}

.nav-links {
    list-style: none;
    display: flex; align-items: center; gap: var(--space-lg);
    margin: 0; padding: 0;
}
.nav-links li { display: flex; align-items: center; }
.nav-links a {
    color: var(--gray-700); font-weight: 500; font-size: 0.95rem;
    padding: 0.5rem 0;
}
.nav-links a:hover { color: var(--primary); }
.nav-links .btn { padding: 0.65rem 1.25rem; }

.mobile-toggle {
    display: none;
    background: none; border: none; cursor: pointer;
    padding: 0.5rem; flex-direction: column; gap: 4px;
    min-width: 44px; min-height: 44px;
    align-items: center; justify-content: center;
}
.mobile-toggle span {
    width: 24px; height: 2px;
    background: var(--gray-700); border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex; flex-direction: column; align-items: stretch;
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--white); border-bottom: 1px solid var(--gray-200);
        padding: var(--space-md) var(--space-lg);
        gap: var(--space-sm);
        box-shadow: var(--shadow-lg);
    }
    .mobile-toggle { display: flex; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    position: relative;
    padding: var(--space-3xl) 0;
    background:
        radial-gradient(ellipse at top right, var(--primary-light) 0%, transparent 60%),
        radial-gradient(ellipse at bottom left, rgba(94,53,177,0.08) 0%, transparent 50%),
        var(--white);
    overflow: hidden;
}

.hero-container {
    max-width: 1400px; margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid; grid-template-columns: 1.1fr 1fr;
    gap: var(--space-2xl); align-items: center;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 0.85rem; font-weight: 500; color: var(--gray-700);
    box-shadow: var(--shadow-sm);
}
.hero-badge svg { color: var(--accent); }

.hero h1 {
    margin-top: var(--space-md);
    margin-bottom: var(--space-md);
}
.hero-highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead {
    font-size: 1.15rem; color: var(--gray-600);
    max-width: 580px;
    margin-bottom: var(--space-lg);
}
.hero-buttons {
    display: flex; flex-wrap: wrap; gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}
.hero-trust {
    list-style: none; display: flex; flex-wrap: wrap;
    gap: var(--space-md); padding: 0; margin: 0;
}
.hero-trust li {
    display: inline-flex; align-items: center; gap: 0.5rem;
    color: var(--gray-600); font-size: 0.9rem; font-weight: 500;
}
.hero-trust svg { width: 18px; height: 18px; color: var(--success); }

@media (max-width: 900px) {
    .hero-container { grid-template-columns: 1fr; }
}

/* Lead form card */
.lead-form-card {
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    box-shadow: var(--shadow-xl);
}
.lead-form-title { margin-bottom: var(--space-xs); font-size: 1.25rem; font-weight: 700; }
.lead-form-sub { font-size: 0.9rem; color: var(--gray-500); margin-bottom: var(--space-md); }

.lead-form { display: grid; gap: var(--space-sm); }
.form-field { display: flex; flex-direction: column; gap: 0.25rem; }
.form-field-full { grid-column: 1 / -1; }
.form-label { font-size: 0.85rem; font-weight: 500; color: var(--gray-700); }
.lead-form input,
.lead-form select,
.lead-form textarea {
    padding: 0.75rem 1rem;
    font: inherit; color: var(--gray-900);
    background: var(--gray-50); border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    min-height: 44px;
}
.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus {
    outline: none; border-color: var(--primary);
    background: var(--white); box-shadow: var(--shadow-glow);
}
.form-fineprint { font-size: 0.78rem; color: var(--gray-500); margin-top: var(--space-xs); }
.form-feedback { margin-top: var(--space-sm); font-size: 0.9rem; }
.form-feedback.error   { color: var(--error); }
.form-feedback.success { color: var(--success); }

/* ==========================================================================
   Stats band
   ========================================================================== */

.stats {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--space-2xl) 0;
}
.stats-container {
    max-width: 1200px; margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg); text-align: center;
}
.stat-card {}
.stat-number {
    font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800;
    background: linear-gradient(135deg, #fff, var(--primary-light));
    -webkit-background-clip: text; background-clip: text; color: transparent;
    line-height: 1; margin-bottom: 0.5rem;
}
.stat-label { font-size: 0.85rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.08em; }

@media (max-width: 700px) {
    .stats-container { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
}

/* ==========================================================================
   Section helpers
   ========================================================================== */

.section-header {
    text-align: center; max-width: 720px;
    margin: 0 auto var(--space-2xl);
}
.section-eyebrow {
    display: inline-block; padding: 0.25rem 0.75rem; margin-bottom: var(--space-sm);
    background: var(--light-bg); color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
}
.section-lead { color: var(--gray-600); font-size: 1.1rem; margin-top: var(--space-xs); }

/* ==========================================================================
   How it works
   ========================================================================== */

.how-it-works { padding: var(--space-3xl) 0; background: var(--gray-50); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.step-card {
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg); padding: var(--space-lg);
    transition: transform var(--transition), box-shadow var(--transition);
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step-number {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white); font-weight: 800; font-size: 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}
.step-card h3 { margin-bottom: 0.5rem; }
.step-card p { color: var(--gray-600); }

@media (max-width: 800px) {
    .steps { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Pricing
   ========================================================================== */

.pricing { padding: var(--space-3xl) 0; }
.pricing-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}
.pricing-card {
    position: relative;
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex; flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition);
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card.is-featured {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(30,136,229,0.15), var(--shadow-md);
}
.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white); font-size: 0.75rem; font-weight: 600;
    border-radius: var(--radius-full); letter-spacing: 0.04em;
    text-transform: uppercase;
}
.pricing-card-header { text-align: center; margin-bottom: var(--space-md); }
.pricing-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px;
    background: var(--light-bg); color: var(--primary);
    border-radius: var(--radius-md);
    font-size: 1.5rem; line-height: 1;
    margin-bottom: var(--space-sm);
}
.pricing-card h3 { font-size: 1.25rem; margin-bottom: 0.25rem; }
.pricing-desc { font-size: 0.85rem; color: var(--gray-500); }
.pricing-amount { text-align: center; margin-bottom: var(--space-md); padding-bottom: var(--space-md); border-bottom: 1px solid var(--gray-100); }
.amount-currency { font-size: 1.25rem; font-weight: 600; color: var(--gray-500); vertical-align: top; }
.amount-value { font-size: 2.5rem; font-weight: 800; color: var(--gray-900); letter-spacing: -0.02em; }
.amount-period { font-size: 0.95rem; color: var(--gray-500); }
.amount-yearly { font-size: 0.8rem; color: var(--gray-500); margin-top: 0.5rem; }

.pricing-features { list-style: none; padding: 0; margin: 0 0 var(--space-md); flex: 1; display: grid; gap: 0.6rem; }
.pricing-features li {
    display: flex; gap: 0.5rem; align-items: flex-start;
    font-size: 0.9rem; color: var(--gray-700);
}
.pricing-features svg { color: var(--accent); flex: 0 0 18px; margin-top: 2px; }

.pricing-note { text-align: center; color: var(--gray-500); font-size: 0.9rem; }

@media (max-width: 1100px) {
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .pricing-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Trust
   ========================================================================== */

.trust { padding: var(--space-3xl) 0; background: var(--gray-50); }
.trust-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--space-2xl); align-items: center; }
.trust-copy h2 { margin-bottom: var(--space-md); }
.trust-copy p { color: var(--gray-600); margin-bottom: var(--space-md); font-size: 1.05rem; }
.trust-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.8rem; }
.trust-points li { padding: 0.5rem 0; border-bottom: 1px dashed var(--gray-200); color: var(--gray-700); }
.trust-points li:last-child { border-bottom: none; }
.trust-points strong { color: var(--gray-900); }

.trust-card {
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
}
.trust-card-icon { font-size: 2rem; margin-bottom: var(--space-sm); }
.trust-card h3 { margin-bottom: var(--space-sm); }
.trust-card ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.trust-card li {
    padding-left: 1.5rem; position: relative; color: var(--gray-700);
}
.trust-card li::before {
    content: ""; position: absolute; left: 0; top: 0.55rem;
    width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
}

@media (max-width: 900px) {
    .trust-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Final CTA
   ========================================================================== */

.cta { padding: var(--space-3xl) 0; }
.cta-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
}
.cta-card h2 { color: var(--white); margin-bottom: var(--space-sm); }
.cta-card p { color: rgba(255,255,255,0.9); margin-bottom: var(--space-lg); font-size: 1.1rem; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center; }
.cta-buttons .btn-primary { background: var(--white); color: var(--primary); }
.cta-buttons .btn-primary:hover { background: var(--gray-100); color: var(--primary-dark); }
.cta-buttons .btn-ghost { color: var(--white); border-color: rgba(255,255,255,0.4); }
.cta-buttons .btn-ghost:hover { background: rgba(255,255,255,0.1); color: var(--white); border-color: var(--white); }

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background: var(--gray-900); color: var(--gray-400);
    padding: var(--space-2xl) 0 var(--space-lg);
}
.footer-grid {
    max-width: 1200px; margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}
.footer-brand h3 { color: var(--white); margin-bottom: var(--space-sm); }
.footer-trust { list-style: none; padding: 0; margin: var(--space-md) 0 0; display: grid; gap: 0.5rem; }
.footer-trust li { font-size: 0.9rem; color: var(--gray-400); }
.footer h4 { color: var(--white); margin-bottom: var(--space-sm); font-size: 0.95rem; }
.footer-section a { color: var(--gray-400); }
.footer-section a:hover { color: var(--white); }

.footer-bottom {
    max-width: 1200px; margin: 0 auto;
    padding: var(--space-lg) var(--space-lg) 0;
    border-top: 1px solid var(--gray-800);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: var(--space-sm);
    font-size: 0.85rem;
}
.footer-bottom a { color: var(--gray-400); }
.footer-bottom a:hover { color: var(--white); }

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Standard page / single
   ========================================================================== */

.page-content, .single-post, .archive { padding: var(--space-2xl) 0 var(--space-3xl); }
.page-header, .post-header, .archive-header {
    text-align: center; margin-bottom: var(--space-xl);
}
.page-body, .post-body { max-width: 720px; margin: 0 auto; font-size: 1.05rem; }
.page-body p, .post-body p { margin-bottom: var(--space-md); }
.post-meta { color: var(--gray-500); font-size: 0.9rem; }
.post-meta > * + *::before { content: " · "; margin: 0 0.5rem; }
.post-thumbnail { margin: 0 auto var(--space-lg); max-width: 960px; border-radius: var(--radius-lg); overflow: hidden; }

.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.post-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; transition: transform var(--transition), box-shadow var(--transition); }
.post-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.post-card-thumb img { aspect-ratio: 16/9; object-fit: cover; }
.post-card-body { padding: var(--space-md); }
.post-card-body h2 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.post-card-body h2 a { color: var(--gray-900); }
.post-card-meta { font-size: 0.85rem; color: var(--gray-500); margin-bottom: 0.5rem; }

@media (max-width: 1000px) { .post-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .post-grid { grid-template-columns: 1fr; } }