/* ============================================================
   about-enhance.css
   Visual redesign for the ABOUT US page (About-Us.aspx) only.
   Purely additive / self-contained -- this file is linked only
   on About-Us.aspx, so it cannot affect other pages.
   Palette kept identical to theme.css / home-enhance.css:
     primary blue  #2491d0
     teal/green    #00dba5 / #00bf99 / #00acdb
     dark text     #233a46 / #455f68
     light bg      #f1f8f9 / #f7fbfc
   All custom classes are prefixed .ab- to avoid collisions.
   ============================================================ */

html { scroll-behavior: smooth; }

.ab-wrap * { box-sizing: border-box; }

/* ============================================================
   PAGE HERO  -  title band with breadcrumb over clinic photo
   ============================================================ */
.ab-hero {
    position: relative;
    padding: 90px 0 80px;
    background: url('../images/about-bg.jpg') center center no-repeat;
    background-size: cover;
    overflow: hidden;
}
.ab-hero:before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg,
        rgba(20, 45, 60, .93) 0%,
        rgba(20, 60, 80, .88) 45%,
        rgba(0, 90, 110, .82) 100%);
    z-index: 0;
}
.ab-hero .container { position: relative; z-index: 1; }
.ab-hero-badge {
    display: inline-block;
    margin-bottom: 18px;
    padding: 8px 20px;
    border-radius: 30px;
    background: rgba(0, 219, 165, .14);
    border: 1px solid rgba(0, 219, 165, .55);
    color: #00dba5;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.ab-hero h1 {
    color: #fff;
    font-size: 42px;
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 16px;
}
.ab-hero p {
    color: #cfe6ef;
    font-size: 17px;
    line-height: 1.7;
    max-width: 720px;
    margin: 0 0 20px;
}
.ab-crumb {
    font-size: 14px;
    color: #9fc4d2;
    letter-spacing: .3px;
}
.ab-crumb a { color: #00dba5; }
.ab-crumb a:hover { color: #fff; }
.ab-crumb span { margin: 0 8px; opacity: .6; }

/* ============================================================
   SHARED SECTION HEADINGS
   ============================================================ */
.ab-eyebrow {
    display: block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #00bf99;
    margin-bottom: 12px;
}
.ab-eyebrow.is-center { text-align: center; }
.ab-h2 {
    color: #233a46;
    font-size: 30px;
    line-height: 1.3;
    font-weight: 700;
    margin: 0 0 18px;
}
.ab-h2.is-center { text-align: center; }
.ab-h2 b { color: #2491d0; font-weight: 800; }
.ab-section-sub {
    text-align: center;
    color: #6b818c;
    font-size: 16px;
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto 50px;
}

/* ============================================================
   STORY  -  framed photos + welcome copy
   ============================================================ */
.ab-story { padding: 80px 0; background: #fff; }
.ab-story .row { display: flex; flex-wrap: wrap; align-items: center; margin: 0 -15px; }
.ab-story-media,
.ab-story-text { padding: 0 15px; }
.ab-story-media { flex: 0 0 45%; max-width: 45%; }
.ab-story-text  { flex: 0 0 55%; max-width: 55%; }

.ab-frame {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 22px 50px rgba(35, 58, 70, .18);
}
.ab-frame img { width: 100%; height: 100%; display: block; object-fit: cover; }
/* decorative offset accent block behind the photo */
.ab-story-media { position: relative; }
.ab-story-media:before {
    content: "";
    position: absolute;
    left: -14px; bottom: -14px;
    width: 55%; height: 55%;
    border-radius: 18px;
    background: linear-gradient(135deg, #2491d0, #00dba5);
    opacity: .14;
    z-index: 0;
}
.ab-frame { position: relative; z-index: 1; }

/* small floating experience badge on the photo */
.ab-exp {
    position: absolute;
    right: 18px; bottom: 18px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: 14px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 12px 28px rgba(35, 58, 70, .22);
}
.ab-exp i {
    font-size: 30px;
    color: #00bf99;
    line-height: 1;
}
.ab-exp b { display: block; font-size: 24px; font-weight: 800; color: #233a46; line-height: 1; }
.ab-exp span { font-size: 12.5px; color: #6b818c; letter-spacing: .3px; }

.ab-story-text .ab-lead {
    font-size: 18px;
    line-height: 1.7;
    color: #2b4853;
    margin: 0 0 18px;
}
.ab-story-text p {
    color: #5b7682;
    font-size: 15.5px;
    line-height: 1.8;
    margin: 0 0 18px;
}
.ab-story-text .ab-quote {
    margin: 22px 0;
    padding: 16px 22px;
    border-left: 4px solid #00dba5;
    background: #f7fbfc;
    border-radius: 0 12px 12px 0;
    font-size: 16px;
    font-style: italic;
    color: #2b4853;
}
.ab-story-actions { margin-top: 26px; display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }
.ab-phone { font-size: 15px; color: #233a46; }
.ab-phone i { color: #00bf99; margin-right: 7px; }
.ab-phone a { color: #2491d0; font-weight: 700; }
.ab-phone a:hover { color: #00acdb; }

/* shared button (this file is standalone, so define the gradient button) */
.ab-btn {
    display: inline-block;
    padding: 12px 34px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .5px;
    text-transform: uppercase;
    color: #fff !important;
    background: linear-gradient(90deg, #00acdb, #00dba5);
    box-shadow: 0 6px 16px rgba(0, 172, 219, .28);
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.ab-btn:hover,
.ab-btn:focus {
    background: linear-gradient(90deg, #00dba5, #00acdb);
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(0, 219, 165, .35);
    color: #fff !important;
    text-decoration: none;
}
.ab-btn.is-ghost {
    background: transparent;
    color: #fff !important;
    border: 2px solid rgba(255, 255, 255, .65);
    box-shadow: none;
}
.ab-btn.is-ghost:hover { background: #fff; color: #2491d0 !important; border-color: #fff; }

/* ============================================================
   STATS BAND  -  numbers over a teal/blue gradient
   ============================================================ */
.ab-stats {
    position: relative;
    padding: 64px 0;
    background: linear-gradient(135deg, #2491d0 0%, #00bf99 100%);
    overflow: hidden;
}
.ab-stats:before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('../images/dental-chair.jpg') center center no-repeat;
    background-size: cover;
    opacity: .10;
    mix-blend-mode: luminosity;
}
.ab-stats .container { position: relative; z-index: 1; }
.ab-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.ab-stat {
    text-align: center;
    padding: 14px 10px;
    border-right: 1px solid rgba(255, 255, 255, .18);
}
.ab-stat:last-child { border-right: none; }
.ab-stat i { font-size: 30px; color: rgba(255, 255, 255, .9); margin-bottom: 12px; display: block; }
.ab-stat b {
    display: block;
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
    color: #fff;
    margin-bottom: 8px;
}
.ab-stat span {
    display: block;
    font-size: 13.5px;
    letter-spacing: .8px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .92);
}

/* ============================================================
   MISSION / VISION / VALUES  -  three cards
   ============================================================ */
.ab-mvv { padding: 80px 0; background: #f7fbfc; }
.ab-mvv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.ab-mvv-card {
    background: #fff;
    border-radius: 16px;
    padding: 40px 32px;
    box-shadow: 0 8px 24px rgba(35, 58, 70, .08);
    transition: transform .35s ease, box-shadow .35s ease;
    border-top: 4px solid transparent;
}
.ab-mvv-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 22px 44px rgba(35, 58, 70, .16);
    border-top-color: #00dba5;
}
.ab-mvv-icon {
    width: 70px; height: 70px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
    margin-bottom: 22px;
    background: linear-gradient(135deg, #2491d0, #00acdb);
}
.ab-mvv-card:nth-child(2) .ab-mvv-icon { background: linear-gradient(135deg, #00acdb, #00dba5); }
.ab-mvv-card:nth-child(3) .ab-mvv-icon { background: linear-gradient(135deg, #00bf99, #2491d0); }
.ab-mvv-card h3 { font-size: 21px; font-weight: 700; color: #233a46; margin: 0 0 14px; }
.ab-mvv-card p { font-size: 15px; line-height: 1.8; color: #5b7682; margin: 0; }

/* ============================================================
   WHY CHOOSE US  -  feature grid with icons
   ============================================================ */
.ab-why { padding: 80px 0; background: #fff; }
.ab-why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
.ab-feature {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 26px 24px;
    border-radius: 14px;
    background: #f7fbfc;
    border: 1px solid #eef3f5;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.ab-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 32px rgba(35, 58, 70, .10);
    border-color: rgba(0, 219, 165, .5);
}
.ab-feature i {
    flex: 0 0 auto;
    width: 52px; height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 23px;
    color: #00bf99;
    background: rgba(0, 219, 165, .12);
    transition: background .3s ease, color .3s ease;
}
.ab-feature:hover i { background: linear-gradient(135deg, #2491d0, #00dba5); color: #fff; }
.ab-feature h4 { margin: 2px 0 8px; font-size: 17px; font-weight: 700; color: #233a46; }
.ab-feature p { margin: 0; font-size: 14px; line-height: 1.65; color: #5b7682; }

/* ============================================================
   EXPERTISE  -  specialties (Perio / Prostho / Endo) cards
   ============================================================ */
.ab-exp-section { padding: 80px 0; background: #f7fbfc; }
.ab-exp-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.ab-exp-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    align-items: flex-end;
    box-shadow: 0 8px 24px rgba(35, 58, 70, .12);
}
.ab-exp-card img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}
.ab-exp-card:hover img { transform: scale(1.09); }
.ab-exp-card:after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(20, 45, 60, .92) 0%, rgba(20, 45, 60, .35) 55%, rgba(20, 45, 60, 0) 100%);
}
.ab-exp-body { position: relative; z-index: 1; padding: 28px 26px; color: #fff; }
.ab-exp-body h3 { font-size: 20px; font-weight: 700; margin: 0 0 10px; color: #fff; }
.ab-exp-body p { font-size: 14px; line-height: 1.65; margin: 0; color: rgba(255, 255, 255, .9); }

/* ============================================================
   CTA BAND  -  book an appointment
   ============================================================ */
.ab-cta {
    padding: 70px 0;
    background: linear-gradient(135deg, #233a46 0%, #0c5c66 100%);
    text-align: center;
}
.ab-cta h2 { color: #fff; font-size: 30px; font-weight: 800; margin: 0 0 14px; }
.ab-cta p { color: #cfe6ef; font-size: 16px; line-height: 1.7; max-width: 640px; margin: 0 auto 28px; }
.ab-cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 991px) {
    .ab-hero { padding: 70px 0 60px; }
    .ab-hero h1 { font-size: 34px; }
    .ab-story, .ab-mvv, .ab-why, .ab-exp-section { padding: 60px 0; }
    .ab-story-media, .ab-story-text { flex: 0 0 100%; max-width: 100%; }
    .ab-story-media { margin-bottom: 40px; }
    .ab-mvv-grid, .ab-why-grid, .ab-exp-grid { grid-template-columns: repeat(2, 1fr); }
    .ab-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
    .ab-stat:nth-child(2) { border-right: none; }
}
@media (max-width: 767px) {
    .ab-hero { padding: 55px 0 50px; }
    .ab-hero h1 { font-size: 27px; }
    .ab-hero p { font-size: 15px; }
    .ab-h2 { font-size: 24px; }
    .ab-story, .ab-mvv, .ab-why, .ab-exp-section { padding: 48px 0; }
    .ab-stats { padding: 48px 0; }
    .ab-mvv-grid, .ab-why-grid, .ab-exp-grid { grid-template-columns: 1fr; gap: 22px; }
    .ab-stats-grid { grid-template-columns: 1fr; gap: 28px; }
    .ab-stat { border-right: none; }
    .ab-stat b { font-size: 36px; }
    .ab-story-actions { gap: 16px; }
}