/* ============================================
   istaff.site - Custom Styles
   Bootstrap 5.3 Overrides & Brand Styling
   Mobile-first approach
   ============================================ */

/* Import Design System Tokens */
@import url('tokens.css');

/* Google Fonts — Inter with font-display: swap */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ------------------------------------------
   1. CSS Custom Properties (Brand Colors)
   Now referencing design tokens
   ------------------------------------------ */
:root {
    --bs-primary: var(--color-primary-600);
    --bs-primary-rgb: 79, 70, 229;
    --bs-secondary: var(--color-neutral-600);
    --bs-secondary-rgb: 87, 83, 78;
    --color-accent: var(--color-accent-500);
    --color-dark: var(--color-neutral-900);
    --color-light: var(--color-neutral-50);
    --bs-body-font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --bs-body-color: var(--color-neutral-800);
    --bs-body-line-height: 1.5;
    --transition-base: var(--duration-normal) ease;
}

/* ------------------------------------------
   2. Global & Base Styles
   ------------------------------------------ */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--bs-body-font-family);
    color: var(--bs-body-color);
    line-height: var(--bs-body-line-height);
    font-weight: 400;
    letter-spacing: 0.01em;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-weight: 700;
    color: var(--color-dark);
    line-height: var(--leading-tight);
    letter-spacing: -0.025em;
}

h4, h5, h6 {
    font-weight: 600;
    color: var(--color-dark);
    line-height: var(--leading-tight);
}

h4 {
    letter-spacing: -0.025em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    line-height: var(--leading-normal);
}

a {
    transition: color var(--transition-base), opacity var(--transition-base);
}

/* Card heading truncation — 2-line clamp */
.card h1, .card h2, .card h3, .card h4, .card h5, .card h6,
.card .card-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ------------------------------------------
   3. Bootstrap Component Overrides
   ------------------------------------------ */

/* Buttons */
.btn-primary {
    --bs-btn-bg: var(--color-primary-600);
    --bs-btn-border-color: var(--color-primary-600);
    --bs-btn-hover-bg: var(--color-primary-700);
    --bs-btn-hover-border-color: var(--color-primary-700);
    --bs-btn-active-bg: var(--color-primary-800);
    --bs-btn-active-border-color: var(--color-primary-800);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

.btn-outline-primary {
    --bs-btn-color: var(--color-primary-600);
    --bs-btn-border-color: var(--color-primary-600);
    --bs-btn-hover-bg: var(--color-primary-600);
    --bs-btn-hover-border-color: var(--color-primary-600);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: var(--font-size-md);
}

/* Accordion transition timing (200-400ms) */
.accordion-collapse {
    transition: height var(--duration-normal) ease;
}

.accordion-button {
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.accordion-button:not(.collapsed) {
    background-color: var(--color-primary-50);
    color: var(--color-primary-600);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.25);
    border-color: var(--color-primary-600);
}

/* Form focus states */
.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary-600);
    box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.2);
}

/* Cards base */
.card {
    border-radius: var(--radius-lg);
    border-color: var(--color-neutral-200);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Badge styling */
.badge {
    font-weight: 600;
    padding: 0.4em 0.8em;
    border-radius: var(--radius-sm);
}

/* ------------------------------------------
   4. Navbar
   ------------------------------------------ */
.navbar {
    transition: background-color var(--transition-base);
    padding: 0.75rem 0;
}

.navbar-dark .navbar-brand {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.navbar-dark .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: opacity var(--transition-base);
}

.navbar-dark .nav-link:hover {
    opacity: 0.85;
}

#langSwitch {
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ------------------------------------------
   5. Hero Section
   ------------------------------------------ */
#hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-neutral-900) 0%, var(--color-neutral-800) 50%, var(--color-secondary-900) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(79, 70, 229, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

#hero h1 {
    color: inherit;
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: var(--leading-tight);
    letter-spacing: -0.025em;
}

#hero .lead {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#hero .btn-primary {
    padding: 0.9rem 2.5rem;
    font-size: var(--font-size-md);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

#hero .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

/* ------------------------------------------
   6. Services Section
   ------------------------------------------ */
#services .card-body i {
    display: block;
}

#services .accordion-item {
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
    overflow: hidden;
}

/* ------------------------------------------
   7. Pricing Section
   ------------------------------------------ */
#pricing .card {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

#pricing .card-header {
    padding: 1.25rem;
    border-bottom: none;
}

#pricing .card-title {
    color: var(--color-primary-600);
    font-size: 2rem;
    font-weight: 800;
}

/* Recommended card emphasis */
#pricing .border-primary {
    border-width: 2px !important;
    border-color: var(--color-primary-600) !important;
    transform: scale(1.05);
    z-index: 1;
    position: relative;
}

#pricing .border-primary:hover {
    transform: scale(1.07);
}

#pricing .shadow-lg {
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.15) !important;
}

/* Recommended badge */
#pricing .badge.bg-warning {
    background-color: var(--color-accent-500) !important;
    color: var(--color-neutral-900) !important;
    font-size: var(--font-size-xs);
    padding: 0.4em 1em;
    font-weight: 700;
    letter-spacing: 0.3px;
}

/* ------------------------------------------
   8. Social Proof Section
   ------------------------------------------ */
#social-proof .card {
    border: 1px solid var(--color-neutral-200);
}

#social-proof .badge.bg-primary {
    font-size: 0.72rem;
    font-weight: 500;
}

/* Tech logos grid */
#social-proof .border.rounded {
    transition: all var(--transition-base);
    background: var(--color-neutral-50);
}

#social-proof .border.rounded:hover {
    border-color: var(--color-primary-600) !important;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.1);
}

/* ------------------------------------------
   9. FAQ Section
   ------------------------------------------ */
#faq .accordion-item {
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-md) !important;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

#faq .accordion-button {
    font-size: var(--font-size-base);
}

#faq .accordion-body {
    color: var(--color-neutral-600);
    line-height: var(--leading-relaxed);
}

/* ------------------------------------------
   10. Urgency / Countdown Section
   ------------------------------------------ */
#urgency #offerBanner {
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%) !important;
    border-radius: var(--radius-xl);
}

.countdown-digit {
    display: inline-block;
    font-family: 'Courier New', monospace;
    font-size: 2rem;
    font-weight: 700;
    background: var(--color-neutral-900);
    color: var(--color-neutral-50);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    min-width: 3rem;
    text-align: center;
    margin: 0 0.15rem;
}

.countdown-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ------------------------------------------
   11. Contact Section
   ------------------------------------------ */
#contact .form-control,
#contact .form-select {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border-color: var(--color-neutral-300);
}

#contact .btn-primary.btn-lg {
    padding: 0.9rem;
    font-size: var(--font-size-md);
    margin-top: 0.5rem;
}

/* ------------------------------------------
   12. Footer
   ------------------------------------------ */
footer {
    background-color: var(--color-neutral-900) !important;
}

footer a.text-white:hover {
    opacity: 0.8;
}

footer .btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

footer h5 {
    color: var(--color-neutral-50);
    font-size: var(--font-size-md);
    margin-bottom: 1rem;
}

footer .input-group .form-control {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

footer .input-group .btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ------------------------------------------
   13. Cookie Consent Banner
   ------------------------------------------ */
#cookieConsent {
    z-index: 1050;
    box-shadow: var(--shadow-lg);
    background-color: var(--color-neutral-900) !important;
}

#cookieConsent p {
    font-size: var(--font-size-sm);
}

#cookieConsent .btn {
    min-height: 44px;
    min-width: 44px;
    padding: 0.5rem 1.25rem;
}

/* ------------------------------------------
   14. Sticky Mobile CTA
   ------------------------------------------ */
#stickyCTA {
    z-index: 1040;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.1);
    background: var(--color-neutral-50);
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom, 0px));
}

#stickyCTA .btn {
    min-height: 44px;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
}

/* ------------------------------------------
   15. Touch Targets (Mobile - min 44x44px)
   ------------------------------------------ */
@media (max-width: 768px) {
    .btn,
    .nav-link,
    a,
    .form-control,
    .form-select,
    .accordion-button,
    button {
        min-height: 44px;
        min-width: 44px;
    }

    .nav-link {
        padding: 0.75rem 1rem;
    }

    .navbar-toggler {
        min-height: 44px;
        min-width: 44px;
    }
}

/* ------------------------------------------
   16. Responsive Adjustments
   ------------------------------------------ */

/* Small mobile (320px - 575px) */
@media (max-width: 575.98px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.2rem; }
    h4 { font-size: 1.1rem; }
    h5 { font-size: 1rem; }
    h6 { font-size: 0.9rem; }

    #hero {
        padding: 3rem 0;
    }

    #hero h1 {
        font-size: 1.75rem;
    }

    #hero .lead {
        font-size: var(--font-size-base);
    }

    #hero .btn-primary {
        padding: 0.75rem 2rem;
        font-size: var(--font-size-base);
        width: 100%;
    }

    .countdown-digit {
        font-size: 1.4rem;
        padding: 0.4rem 0.5rem;
        min-width: 2.2rem;
    }

    .countdown-label {
        font-size: var(--font-size-xs);
        margin: 0 0.2rem;
    }

    #pricing .border-primary {
        transform: scale(1);
    }

    section.py-5 {
        padding-top: 2.5rem !important;
        padding-bottom: 2.5rem !important;
    }

    /* Add space for sticky CTA on mobile */
    body {
        padding-bottom: 60px;
    }
}

/* Tablet (576px - 767px) */
@media (min-width: 576px) and (max-width: 767.98px) {
    h1 { font-size: 1.85rem; }
    h2 { font-size: 1.6rem; }
    h3 { font-size: 1.35rem; }

    #hero h1 {
        font-size: 2rem;
    }

    #hero .lead {
        font-size: 1.05rem;
    }

    body {
        padding-bottom: 60px;
    }
}

/* Tablet landscape / small desktop (768px+) */
@media (min-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    h5 { font-size: 1.125rem; }
    h6 { font-size: 1rem; }

    #hero h1 {
        font-size: 2.75rem;
    }

    #hero .lead {
        font-size: var(--font-size-lg);
    }

    .countdown-digit {
        font-size: 2.5rem;
        padding: 0.6rem 1rem;
        min-width: 3.5rem;
    }

    .countdown-label {
        font-size: var(--font-size-sm);
        margin: 0 0.5rem;
    }
}

/* Large desktop (1200px+) */
@media (min-width: 1200px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2.25rem; }

    #hero h1 {
        font-size: 3.25rem;
    }

    #hero .lead {
        font-size: 1.3rem;
        max-width: 700px;
    }
}

/* ------------------------------------------
   17. Section Spacing & Layout Consistency
   ------------------------------------------ */
section {
    position: relative;
}

section .container > h2 {
    margin-bottom: 2.5rem;
}

.bg-light {
    background-color: var(--color-neutral-50) !important;
}

/* ------------------------------------------
   18. Utility & Helper Classes
   ------------------------------------------ */
.text-primary {
    color: var(--color-primary-600) !important;
}

/* Scroll indicator fade when near contact */
#stickyCTA.is-hidden {
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-normal) ease;
}

/* ------------------------------------------
   19. Accessibility — Skip Navigation & Focus Indicators
   Requirements: 17.2, 17.7
   ------------------------------------------ */

/* Skip Navigation Link — visible only when focused */
.skip-nav {
    position: absolute;
    top: -100%;
    left: var(--space-4, 16px);
    z-index: 10000;
    padding: 0.75rem 1.25rem;
    background: var(--color-primary-600);
    color: #fff;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: 0 0 var(--radius-md, 8px) var(--radius-md, 8px);
    text-decoration: none;
    transition: top var(--duration-fast, 150ms) ease;
}

.skip-nav:focus {
    top: 0;
    outline: 2px solid var(--color-primary-600);
    outline-offset: 2px;
    color: #fff;
}

/* Global Focus-Visible Indicators — 2px outline, 2px offset, primary color */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible,
[role="button"]:focus-visible,
[role="menuitem"]:focus-visible {
    outline: 2px solid var(--color-primary-600);
    outline-offset: 2px;
}