/* ==========================================================================
   JBR Apps - Global Design System & Utility Styles
   ========================================================================== */

:root {
    --bg-color: #f5f5f7;
    --panel-bg: #ffffff;
    --text-main: #1d1d1f;
    --text-secondary: #868687;
    --border-color: rgba(0, 0, 0, 0.08);
    --accent-color: #0071e3;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --easing-apple: cubic-bezier(0.25, 1, 0.5, 1);
    --logo-filter: none;
    --header-bg: rgba(245, 245, 247, 0.7);
}

[data-theme="dark"] {
    --bg-color: #000000;
    --panel-bg: #161617;
    --text-main: #f5f5f7;
    --text-secondary: #86868b;
    --border-color: rgba(255, 255, 255, 0.08);
    --accent-color: #2997ff;
    --logo-filter: invert(1) brightness(2) contrast(2);
    --header-bg: rgba(0, 0, 0, 0.7);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Common Header & Navigation */
header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: var(--header-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container {
    max-width: 1024px;
    height: 48px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 22px;
}

.nav-left { display: flex; align-items: center; gap: 32px; }
.logo-container { display: inline-flex; align-items: center; height: 100%; text-decoration: none; }
.nav-logo { height: 38px; width: auto; object-fit: contain; filter: var(--logo-filter); transition: filter 0.5s var(--easing-apple), transform 0.5s var(--easing-apple); }
.logo-container:hover .nav-logo { transform: scale(1.08); }

.nav-links { display: flex; gap: 24px; list-style: none; }
.nav-links a { font-size: 13px; font-weight: 400; color: var(--text-main); opacity: 0.7; text-decoration: none; position: relative; padding: 4px 0; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 1px; background-color: var(--accent-color); transform: scaleX(0); transform-origin: right; transition: transform 0.3s var(--easing-apple); }
.nav-links a:hover { opacity: 1; color: var(--accent-color); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.theme-toggle { background: none; border: none; color: var(--text-main); cursor: pointer; font-size: 13px; opacity: 0.7; padding: 6px 12px; border-radius: 12px; }
.theme-toggle:hover { opacity: 1; background-color: var(--border-color); }

/* Common Footer */
footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-color);
    padding: 30px 22px;
    font-size: 11px;
    color: var(--text-secondary);
}

.footer-container { max-width: 1024px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.footer-legal { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-top: 1px solid var(--border-color); padding-top: 14px; }
.footer-links { display: flex; gap: 18px; list-style: none; flex-wrap: wrap; }
.footer-links a { color: var(--text-secondary); text-decoration: none; transition: color 0.2s var(--easing-apple); }
.footer-links a:hover { color: var(--text-main); text-decoration: underline; }

/* ============================================
   App Design Studio - Shared Utilities
   ============================================ */
.studio-layout {
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  gap: 1rem;
  height: calc(100vh - 80px);
  padding: 1rem;
}

.studio-panel {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1rem;
  overflow-y: auto;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.studio-canvas-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-color);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .studio-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    height: auto;
  }
}

/* ============================================
   FAQ, Reviews, Team Sections (Apple Style)
   ============================================ */
.faq-section, .reviews-section, .team-section {
    padding: 60px 22px;
    max-width: 1024px;
    margin: 0 auto;
    width: 100%;
}

.faq-item {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform 0.3s var(--easing-apple), box-shadow 0.3s var(--easing-apple);
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.faq-q {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-main);
}

.faq-a {
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.review-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 24px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.review-card p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-main);
    margin-bottom: 16px;
    font-style: italic;
}

.review-author {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.review-metric {
    display: inline-block;
    margin-top: 12px;
    background: var(--accent-color);
    color: #fff;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
}

.team-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    margin-bottom: 16px;
}

.response-promise {
    display: inline-flex;
    align-items: center;
    background: rgba(41, 151, 255, 0.1);
    color: var(--accent-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 16px;
}

/* ============================================
   Mobile Sticky CTA
   ============================================ */
@media (max-width: 768px) {
    .mobile-sticky-cta {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 400px;
        background-color: rgba(255, 255, 255, 0.7);
        border: 1px solid var(--border-color);
        border-radius: 30px;
        padding: 12px;
        display: flex;
        justify-content: center;
        align-items: center;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        z-index: 9999;
    }

    [data-theme="dark"] .mobile-sticky-cta {
        background-color: rgba(22, 22, 23, 0.7);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    .mobile-cta-btn {
        width: 100%;
        background-color: var(--accent-color);
        color: #ffffff !important;
        font-size: 16px;
        font-weight: 600;
        text-align: center;
        padding: 14px 24px;
        border-radius: 20px;
        text-decoration: none;
        letter-spacing: -0.2px;
        transition: transform 0.2s var(--easing-apple), background-color 0.2s;
    }

    .mobile-cta-btn:active {
        transform: scale(0.97);
    }
}
@media (min-width: 769px) {
    .mobile-sticky-cta {
        display: none;
    }
}