/* =====================================================================
   CSA Vietnam — Services page (/services/)
   Standalone, namespaced styles (prefix .svc-) so nothing collides with
   the home-page services section. Uses the brand palette + GSAP/CSS anims.
   ===================================================================== */

:root {
    --svc-primary: #0066ff;
    --svc-primary-dark: #0044cc;
    --svc-navy: #0a1f44;
    --svc-accent: #ff6600;
    --svc-ink: #1b2430;
    --svc-muted: #5b6b7f;
    --svc-light: #f5f8ff;
    --svc-line: #e6ecf5;
    --svc-radius: 18px;
    --svc-shadow: 0 18px 50px rgba(10, 31, 68, 0.12);
    --svc-shadow-lg: 0 30px 70px rgba(10, 31, 68, 0.22);
    --svc-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --svc-grad: linear-gradient(135deg, var(--svc-primary), var(--svc-primary-dark));
    --svc-grad-accent: linear-gradient(135deg, #ff8a3c, var(--svc-accent));
}

.svc-page {
    font-family: "Montserrat", sans-serif;
    color: var(--svc-ink);
    overflow-x: hidden;
}

.svc-page h1,
.svc-page h2,
.svc-page h3 {
    font-family: "Poppins", "Montserrat", sans-serif;
    letter-spacing: -0.02em;
}

/* Each .svc- section sets its own padding via a class selector, which beats
   the global `section{padding-top:100px}` element rule. Only adjust the
   anchor offset here — resetting padding-top would zero out every section's
   top padding due to this selector's higher specificity. */
.svc-page section {
    scroll-margin-top: 90px;
}

.svc-container {
    width: min(1200px, 92%);
    margin-inline: auto;
}

/* ---------- Shared section heading ---------- */
.svc-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: "Inter", sans-serif;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--svc-primary);
    padding: 0.4rem 0.9rem;
    border-radius: 100px;
    background: rgba(0, 102, 255, 0.08);
}

.svc-heading {
    font-size: clamp(1.9rem, 4vw, 2.9rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 1rem 0 0;
    color: var(--svc-navy);
}

.svc-lead {
    font-size: 1.08rem;
    line-height: 1.75;
    color: var(--svc-muted);
    max-width: 60ch;
}

.svc-section-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 3.5rem;
}
.svc-section-head .svc-lead {
    margin: 1rem auto 0;
}

/* =====================================================================
   1. HERO
   ===================================================================== */
.svc-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 9rem 0 5rem;
    color: #fff;
    overflow: hidden;
    background: var(--svc-navy);
    isolation: isolate;
}

.svc-hero__bg {
    position: absolute;
    inset: 0;
    z-index: -3;
    background-image: url("/src/assets/images/pexels-fauxels-3183183.jpg");
    background-size: cover;
    background-position: center;
    transform: scale(1.08);
    will-change: transform;
}

.svc-hero__overlay {
    position: absolute;
    inset: 0;
    z-index: -2;
    background: linear-gradient(
            125deg,
            rgba(6, 18, 46, 0.94) 0%,
            rgba(8, 34, 92, 0.86) 45%,
            rgba(0, 68, 204, 0.72) 100%
        );
}

/* animated gradient orbs */
.svc-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(10px);
    opacity: 0.55;
    z-index: -1;
    pointer-events: none;
}
.svc-orb--1 {
    width: 420px;
    height: 420px;
    top: -120px;
    right: -80px;
    background: radial-gradient(circle at 30% 30%, rgba(0, 132, 255, 0.55), transparent 70%);
    animation: svc-float 14s var(--svc-ease) infinite;
}
.svc-orb--2 {
    width: 320px;
    height: 320px;
    bottom: -90px;
    left: -60px;
    background: radial-gradient(circle at 30% 30%, rgba(255, 102, 0, 0.4), transparent 70%);
    animation: svc-float 18s var(--svc-ease) infinite reverse;
}

.svc-hero__grid {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 54px 54px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 100%);
}

.svc-hero__inner {
    max-width: 780px;
}

.svc-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 1.1rem;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(6px);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 1.6rem;
}
.svc-hero__badge i {
    color: #7cc0ff;
}

.svc-hero__title {
    font-size: clamp(2.3rem, 6vw, 4.1rem);
    font-weight: 800;
    line-height: 1.08;
    margin: 0 0 1.4rem;
}
.svc-hero__title .svc-hl {
    background: linear-gradient(120deg, #ff8a3c, #ffd28a);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.svc-hero__sub {
    font-size: clamp(1.02rem, 2vw, 1.25rem);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    max-width: 60ch;
    margin: 0 0 2.2rem;
}

.svc-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.svc-btn {
    --btn-bg: var(--svc-grad);
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 1.9rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    transition: transform 0.3s var(--svc-ease), box-shadow 0.3s var(--svc-ease),
        background 0.3s var(--svc-ease);
}
.svc-btn i {
    transition: transform 0.3s var(--svc-ease);
}
.svc-btn:hover i {
    transform: translateX(5px);
}
.svc-btn--primary {
    background: var(--svc-grad);
    color: #fff;
    box-shadow: 0 14px 30px rgba(0, 82, 204, 0.45);
}
.svc-btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 82, 204, 0.55);
    color: #fff;
}
.svc-btn--accent {
    background: var(--svc-grad-accent);
    color: #fff;
    box-shadow: 0 14px 30px rgba(255, 102, 0, 0.4);
}
.svc-btn--accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(255, 102, 0, 0.5);
    color: #fff;
}
.svc-btn--ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.35);
}
.svc-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.16);
    transform: translateY(-3px);
    color: #fff;
}
.svc-btn--outline {
    background: transparent;
    color: var(--svc-primary);
    border: 2px solid var(--svc-primary);
}
.svc-btn--outline:hover {
    background: var(--svc-primary);
    color: #fff;
    transform: translateY(-3px);
}

/* quick pills that jump to each pillar */
.svc-hero__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}
.svc-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.6rem 1.2rem;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: background 0.3s var(--svc-ease), transform 0.3s var(--svc-ease);
}
.svc-pill:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    color: #fff;
}
.svc-pill i {
    color: #7cc0ff;
}

.svc-hero__scroll {
    position: absolute;
    left: 50%;
    bottom: 26px;
    transform: translateX(-50%);
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.55);
    border-radius: 16px;
    z-index: 1;
}
.svc-hero__scroll::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 8px;
    width: 4px;
    height: 8px;
    border-radius: 4px;
    background: #fff;
    transform: translateX(-50%);
    animation: svc-scroll 1.8s ease-in-out infinite;
}

/* =====================================================================
   2. PILLARS (alternating image / content)
   ===================================================================== */
.svc-pillars {
    padding: 6rem 0 2rem;
    background: #fff;
}

.svc-pillar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: clamp(2rem, 5vw, 5rem);
    padding: 4rem 0;
    position: relative;
}
.svc-pillar + .svc-pillar {
    border-top: 1px solid var(--svc-line);
}
.svc-pillar__media {
    position: relative;
}
.svc-pillar:nth-child(even) .svc-pillar__media {
    order: 2;
}

.svc-pillar__frame {
    position: relative;
    border-radius: var(--svc-radius);
    overflow: hidden;
    box-shadow: var(--svc-shadow);
    aspect-ratio: 4 / 3;
}
.svc-pillar__frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.9s var(--svc-ease);
}
.svc-pillar:hover .svc-pillar__frame img {
    transform: scale(1.06);
}
.svc-pillar__frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, transparent 55%, rgba(10, 31, 68, 0.35));
}

/* watermark number behind the media */
.svc-pillar__num {
    position: absolute;
    top: -2.4rem;
    left: -1rem;
    font-family: "Poppins", sans-serif;
    font-size: clamp(5rem, 12vw, 9rem);
    font-weight: 800;
    line-height: 1;
    color: rgba(0, 102, 255, 0.08);
    z-index: 0;
    pointer-events: none;
}
.svc-pillar:nth-child(even) .svc-pillar__num {
    left: auto;
    right: -1rem;
}

/* floating stat badge on the image */
.svc-pillar__badge {
    position: absolute;
    bottom: -1.4rem;
    right: -1.2rem;
    background: #fff;
    border-radius: 16px;
    padding: 1rem 1.3rem;
    box-shadow: var(--svc-shadow);
    display: flex;
    align-items: center;
    gap: 0.9rem;
    z-index: 2;
}
.svc-pillar:nth-child(even) .svc-pillar__badge {
    right: auto;
    left: -1.2rem;
}
.svc-pillar__badge-ico {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.1rem;
    background: var(--svc-grad);
    flex-shrink: 0;
}
.svc-pillar__badge b {
    display: block;
    font-size: 1.25rem;
    color: var(--svc-navy);
    line-height: 1;
}
.svc-pillar__badge span {
    font-size: 0.78rem;
    color: var(--svc-muted);
}

.svc-pillar__ico {
    width: 62px;
    height: 62px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    color: #fff;
    background: var(--svc-grad);
    box-shadow: 0 12px 26px rgba(0, 82, 204, 0.32);
    margin-bottom: 1.3rem;
}
.svc-pillar__title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--svc-navy);
    margin: 0 0 0.9rem;
}
.svc-pillar__desc {
    color: var(--svc-muted);
    line-height: 1.75;
    margin: 0 0 1.5rem;
}

.svc-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.6rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.7rem 1.4rem;
}
.svc-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.96rem;
    line-height: 1.5;
    color: var(--svc-ink);
}
.svc-features i {
    color: var(--svc-primary);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.svc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.8rem;
}
.svc-tag {
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: 100px;
    background: var(--svc-light);
    color: var(--svc-primary-dark);
    border: 1px solid var(--svc-line);
}

/* =====================================================================
   3. STATS (counter band)
   ===================================================================== */
.svc-stats {
    position: relative;
    padding: 5rem 0;
    color: #fff;
    background: linear-gradient(135deg, #06122e, #0a3aa0 60%, #0053cc);
    overflow: hidden;
    isolation: isolate;
}
.svc-stats::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000, transparent 90%);
    -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000, transparent 90%);
}
.svc-stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    text-align: center;
}
.svc-stat__ico {
    font-size: 1.7rem;
    color: #ffb27c;
    margin-bottom: 0.7rem;
}
.svc-stat__num {
    font-family: "Poppins", sans-serif;
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 800;
    line-height: 1;
}
.svc-stat__num sup {
    color: #ffb27c;
    font-size: 0.6em;
    top: -0.55em;
}
.svc-stat__label {
    margin-top: 0.5rem;
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.95rem;
}

/* =====================================================================
   4. PROCESS
   ===================================================================== */
.svc-process {
    padding: 6rem 0;
    background: var(--svc-light);
}
.svc-steps {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
/* connecting line */
.svc-steps::before {
    content: "";
    position: absolute;
    top: 34px;
    left: 12%;
    right: 12%;
    height: 3px;
    background: repeating-linear-gradient(
        90deg,
        var(--svc-line) 0 10px,
        transparent 10px 18px
    );
    z-index: 0;
}
.svc-step {
    position: relative;
    z-index: 1;
    text-align: center;
    background: transparent;
}
.svc-step__num {
    width: 68px;
    height: 68px;
    margin: 0 auto 1.2rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-family: "Poppins", sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    color: #fff;
    background: var(--svc-grad);
    box-shadow: 0 12px 26px rgba(0, 82, 204, 0.3);
    position: relative;
}
.svc-step__num i {
    position: absolute;
    bottom: -6px;
    right: -6px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #fff;
    color: var(--svc-accent);
    font-size: 0.8rem;
    display: grid;
    place-items: center;
    box-shadow: var(--svc-shadow);
}
.svc-step h3 {
    font-size: 1.15rem;
    color: var(--svc-navy);
    margin: 0 0 0.5rem;
}
.svc-step p {
    color: var(--svc-muted);
    font-size: 0.92rem;
    line-height: 1.6;
    margin: 0;
}

/* =====================================================================
   5. WHY US (feature grid)
   ===================================================================== */
.svc-why {
    padding: 6rem 0;
    background: #fff;
}
.svc-why__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.svc-why__card {
    padding: 2.1rem 1.9rem;
    border-radius: var(--svc-radius);
    background: #fff;
    border: 1px solid var(--svc-line);
    transition: transform 0.4s var(--svc-ease), box-shadow 0.4s var(--svc-ease),
        border-color 0.4s var(--svc-ease);
    position: relative;
    overflow: hidden;
}
.svc-why__card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: var(--svc-grad);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s var(--svc-ease);
}
.svc-why__card:hover {
    transform: translateY(-8px);
    box-shadow: var(--svc-shadow);
    border-color: transparent;
}
.svc-why__card:hover::before {
    transform: scaleX(1);
}
.svc-why__ico {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-size: 1.4rem;
    color: var(--svc-primary);
    background: rgba(0, 102, 255, 0.09);
    margin-bottom: 1.2rem;
    transition: color 0.4s var(--svc-ease), background 0.4s var(--svc-ease);
}
.svc-why__card:hover .svc-why__ico {
    color: #fff;
    background: var(--svc-grad);
}
.svc-why__card h3 {
    font-size: 1.2rem;
    color: var(--svc-navy);
    margin: 0 0 0.6rem;
}
.svc-why__card p {
    color: var(--svc-muted);
    font-size: 0.95rem;
    line-height: 1.65;
    margin: 0;
}

/* =====================================================================
   6. CTA
   ===================================================================== */
.svc-cta {
    padding: 5rem 0 6rem;
    background: #fff;
}
.svc-cta__box {
    position: relative;
    border-radius: 28px;
    padding: clamp(2.5rem, 5vw, 4.5rem);
    text-align: center;
    color: #fff;
    background: linear-gradient(135deg, #0a3aa0, #0066ff 55%, #003fb0);
    overflow: hidden;
    isolation: isolate;
}
.svc-cta__box::before {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 102, 0, 0.45), transparent 70%);
    top: -120px;
    right: -80px;
    z-index: -1;
    animation: svc-float 16s var(--svc-ease) infinite;
}
.svc-cta__box::after {
    content: "";
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 174, 255, 0.5), transparent 70%);
    bottom: -120px;
    left: -60px;
    z-index: -1;
    animation: svc-float 20s var(--svc-ease) infinite reverse;
}
.svc-cta__box h2 {
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    font-weight: 800;
    margin: 0 0 1rem;
}
.svc-cta__box p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.08rem;
    line-height: 1.7;
    max-width: 56ch;
    margin: 0 auto 2rem;
}
.svc-cta__btns {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

/* =====================================================================
   Reveal-on-scroll — only active once JS marks the page ready, so the
   content is fully visible if JS fails or is disabled.
   ===================================================================== */
.svc-anim [data-reveal] {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity 0.7s var(--svc-ease), transform 0.7s var(--svc-ease);
    transition-delay: calc(var(--i, 0) * 0.09s);
}
.svc-anim [data-reveal="left"] {
    transform: translateX(-40px);
}
.svc-anim [data-reveal="right"] {
    transform: translateX(40px);
}
.svc-anim [data-reveal="zoom"] {
    transform: scale(0.9);
}
.svc-anim [data-reveal].is-in {
    opacity: 1;
    transform: none;
}

/* =====================================================================
   Keyframes
   ===================================================================== */
@keyframes svc-float {
    0%,
    100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-24px, 24px);
    }
}
@keyframes svc-scroll {
    0% {
        opacity: 0;
        transform: translate(-50%, 0);
    }
    40% {
        opacity: 1;
    }
    80% {
        opacity: 0;
        transform: translate(-50%, 14px);
    }
    100% {
        opacity: 0;
    }
}

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 992px) {
    .svc-pillar {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 3.5rem 0;
    }
    .svc-pillar:nth-child(even) .svc-pillar__media {
        order: 0;
    }
    .svc-pillar__num {
        top: -3rem;
    }
    .svc-stats__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem 1rem;
    }
    .svc-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem 1.5rem;
    }
    .svc-steps::before {
        display: none;
    }
    .svc-why__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .svc-hero {
        padding: 8rem 0 4rem;
        min-height: auto;
    }
    .svc-features {
        grid-template-columns: 1fr;
    }
    .svc-why__grid {
        grid-template-columns: 1fr;
    }
    .svc-pillar__badge,
    .svc-pillar:nth-child(even) .svc-pillar__badge {
        right: 0.6rem;
        left: auto;
        bottom: -1rem;
        padding: 0.7rem 0.9rem;
    }
    .svc-hero__cta {
        flex-direction: column;
    }
    .svc-btn {
        justify-content: center;
    }
}

/* =====================================================================
   Reduced motion — show everything, stop looping animations
   ===================================================================== */
@media (prefers-reduced-motion: reduce) {
    .svc-anim [data-reveal] {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    .svc-orb,
    .svc-hero__scroll::before,
    .svc-cta__box::before,
    .svc-cta__box::after {
        animation: none !important;
    }
    .svc-hero__bg {
        transform: none;
    }
}