/* ============================================================
   TOKENS — reuses the same brand values as previous sections
============================================================ */
.case-studies {
    --cs-bg: #FFFFFF;
    --cs-primary: #1E9BF7;
    --cs-primary-dark: #157ACB;
    --cs-text: #000000;
    --cs-white: #FFFFFF;
    --cs-muted: rgba(0, 0, 0, 0.62);
    --cs-line: rgba(0, 0, 0, 0.08);
    --cs-font-heading: 'Inter', 'Montserrat', 'Arial Narrow', 'Helvetica Neue', sans-serif;
    --cs-font-body: 'Poppins', sans-serif;
}

/* ============================================================
   SECTION SHELL
============================================================ */
.case-studies {
    position: relative;
    width: 100%;
    background: var(--cs-bg);
    overflow: hidden;
    padding: 60px 0 80px;
    isolation: isolate;
}

.case-studies * {
    box-sizing: border-box;
}

.case-studies__container {
    position: relative;
    z-index: 3;
    max-width: 1450px;
    width: 100%;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================================
   BACKGROUND
============================================================ */
.case-studies__bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.case-studies__grid-glass {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 55% at 50% 30%, #000 20%, transparent 78%);
    -webkit-mask-image: radial-gradient(ellipse 70% 55% at 50% 30%, #000 20%, transparent 78%);
}

.case-studies__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    background: radial-gradient(circle at 30% 30%, rgba(30, 155, 247, 0.4), rgba(30, 155, 247, 0));
}

.case-studies__glow--one {
    width: 540px;
    height: 540px;
    top: -180px;
    right: -180px;
    opacity: 0.24;
}

.case-studies__glow--two {
    width: 460px;
    height: 460px;
    bottom: -200px;
    left: -160px;
    opacity: 0.2;
}

/* ============================================================
   HEADER
============================================================ */
.case-studies__header {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 700px;
    margin: 0 auto clamp(60px, 7vw, 56px);
}

.case-studies__badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(30, 155, 247, 0.08);
    border: 1px solid rgba(30, 155, 247, 0.18);
    color: var(--cs-primary);
    font-family: var(--cs-font-body);
    font-weight: 600;
    font-size: clamp(11px, 1vw, 13px);
    letter-spacing: 0.3px;
    margin-bottom: 22px;
    opacity: 0;
}

.case-studies__badge i {
    font-size: clamp(10px, 0.9vw, 12px);
}

.case-studies__heading {
    font-family: var(--cs-font-heading);
    font-weight: 900;
    color: var(--cs-text);
    font-size: clamp(28px, 4.2vw, 50px);
    line-height: 1.08;
    letter-spacing: 0.2px;
    margin: 0 0 20px;
    opacity: 0;
    text-transform: uppercase;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.case-studies__heading-accent {
    color: var(--cs-primary);
}

.case-studies__desc {
    font-family: var(--cs-font-body);
    font-weight: 400;
    font-size: clamp(13px, 1.1vw, 15px);
    line-height: 1.7;
    color: var(--cs-muted);
    max-width: 560px;
    margin: 0 auto;
    opacity: 0;
}

/* ============================================================
   CASE STUDIES GRID
============================================================ */
.case-studies__grid {
    position: relative;
    z-index: 3;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* ============================================================
   CASE CARD
============================================================ */
.case-card {
    position: relative;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow:
        0 24px 54px -28px rgba(0, 0, 0, 0.16),
        0 0 0 1px var(--cs-line);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-radius: 24px;
    padding: 0 24px 24px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(34px) scale(0.96);
    transition: box-shadow 0.4s ease, border-color 0.4s ease, background 0.4s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    cursor: pointer;
    height: 100%;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    --cs-card-accent: var(--cs-primary);
    --cs-card-accent-dark: var(--cs-primary-dark);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.case-card::before {
    content: '';
    display: block;
    height: 4px;
    margin: 0 -24px 24px;
    background: linear-gradient(90deg, var(--cs-card-accent), var(--cs-card-accent-dark));
    border-radius: 0 0 6px 6px;
    opacity: 0.9;
}

.case-card:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: color-mix(in srgb, var(--cs-card-accent) 40%, transparent);
    background: rgba(255, 255, 255, 0.78);
    box-shadow:
        0 34px 74px -26px color-mix(in srgb, var(--cs-card-accent) 32%, transparent),
        0 0 0 1px color-mix(in srgb, var(--cs-card-accent) 22%, transparent);
}

.case-card__glow {
    position: absolute;
    top: -35%;
    right: -25%;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, color-mix(in srgb, var(--cs-card-accent) 28%, transparent), transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.case-card:hover .case-card__glow {
    opacity: 1;
}

.case-card__top {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
    pointer-events: none;
}

.case-card__icon-wrap {
    position: relative;
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--cs-white);
    background: linear-gradient(155deg, var(--cs-card-accent), var(--cs-card-accent-dark));
    box-shadow: 0 14px 26px -10px color-mix(in srgb, var(--cs-card-accent) 55%, transparent);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.case-card__icon-wrap::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 20px;
    background: color-mix(in srgb, var(--cs-card-accent) 24%, transparent);
    filter: blur(10px);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.case-card:hover .case-card__icon-wrap {
    transform: rotate(-8deg) scale(1.06);
}

.case-card:hover .case-card__icon-wrap::after {
    opacity: 1;
}

.case-card__app-name {
    font-family: var(--cs-font-heading);
    font-weight: 900;
    font-size: clamp(16px, 1.2vw, 18px);
    color: var(--cs-text);
    margin: 0 0 3px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.case-card__package {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-family: var(--cs-font-body);
    font-weight: 400;
    font-size: clamp(10px, 0.8vw, 11.5px);
    color: var(--cs-muted);
}

.case-card__package::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--cs-card-accent);
    flex-shrink: 0;
}

.case-card__quickstats {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
    pointer-events: none;
}

.case-card__qstat {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--cs-card-accent) 8%, white);
    border: 1px solid color-mix(in srgb, var(--cs-card-accent) 16%, transparent);
    font-family: var(--cs-font-body);
    font-weight: 600;
    font-size: clamp(10px, 0.8vw, 11px);
    color: var(--cs-text);
}

.case-card__qstat i {
    font-size: clamp(9px, 0.7vw, 10px);
    color: var(--cs-card-accent);
}

.case-card__meta {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 14px;
    border-top: 1px solid var(--cs-line);
    margin-top: auto;
    pointer-events: none;
}

.case-card__meta-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.case-card__version {
    font-family: var(--cs-font-body);
    font-weight: 500;
    font-size: clamp(10px, 0.8vw, 12px);
    color: var(--cs-muted);
}

.case-card__platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--cs-card-accent) 10%, white);
    border: 1px solid color-mix(in srgb, var(--cs-card-accent) 18%, transparent);
    font-family: var(--cs-font-body);
    font-weight: 600;
    font-size: clamp(9px, 0.7vw, 10.5px);
    color: var(--cs-card-accent-dark);
    letter-spacing: 0.3px;
}

.case-card__platform-badge i {
    font-size: clamp(9px, 0.7vw, 11px);
}

.case-card__expand-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--cs-card-accent) 10%, white);
    border: 1px solid color-mix(in srgb, var(--cs-card-accent) 20%, transparent);
    font-family: var(--cs-font-body);
    font-weight: 600;
    font-size: clamp(10px, 0.8vw, 11.5px);
    color: var(--cs-card-accent-dark);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
    cursor: pointer;
    white-space: nowrap;
    pointer-events: auto;
    position: relative;
    z-index: 10;
}

.case-card__expand-btn:hover {
    background: color-mix(in srgb, var(--cs-card-accent) 18%, white);
    box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--cs-card-accent) 40%, transparent);
}

.case-card__expand-btn i {
    font-size: clamp(9px, 0.7vw, 11px);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.case-card__expand-btn.is-open {
    background: linear-gradient(135deg, var(--cs-card-accent), var(--cs-card-accent-dark));
    border-color: transparent;
    color: var(--cs-white);
}

.case-card__expand-btn.is-open i {
    transform: rotate(180deg);
}

.case-card.is-active {
    border-color: var(--cs-card-accent);
    background: color-mix(in srgb, var(--cs-card-accent) 5%, white);
    box-shadow:
        0 34px 74px -28px color-mix(in srgb, var(--cs-card-accent) 30%, transparent),
        0 0 0 1px color-mix(in srgb, var(--cs-card-accent) 26%, transparent);
}

/* ============================================================
   DASHBOARD WRAPPER - Desktop (below all cards)
============================================================ */
.case-dashboard-wrapper {
    position: relative;
    z-index: 3;
    margin-top: 32px;
    overflow: hidden;
    display: none;
    opacity: 0;
    height: 0;
    --cs-dash-accent: var(--cs-primary);
    --cs-dash-accent-dark: var(--cs-primary-dark);
}

.case-dashboard-wrapper.is-visible {
    display: block;
}

.case-dashboard-inner {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(30, 155, 247, 0.12);
    border-radius: 28px;
    padding: 8px 36px 32px;
    box-shadow:
        0 24px 54px -28px rgba(30, 155, 247, 0.16),
        0 0 0 1px var(--cs-line);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

/* ============================================================
   DASHBOARD - Mobile (directly below card)
============================================================ */
.case-dashboard-mobile-wrapper {
    display: none;
    margin-top: 16px;
    overflow: hidden;
    --cs-dash-accent: var(--cs-primary);
    --cs-dash-accent-dark: var(--cs-primary-dark);
    width: 100%;
}

.case-dashboard-mobile-wrapper.is-visible {
    display: block;
    height: auto;
    opacity: 1;
}

.case-dashboard-mobile-wrapper .case-dashboard-inner {
    padding: 4px 16px 20px;
    border-radius: 20px;
    max-height: 80vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* ============================================================
   DASHBOARD INNER COMPONENTS (Shared between desktop and mobile)
============================================================ */
.case-dashboard-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 24px 0 22px;
    margin-bottom: 22px;
    border-bottom: 1px solid var(--cs-line);
}

.case-dashboard-header__icon {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(17px, 1.3vw, 19px);
    color: var(--cs-white);
    background: linear-gradient(155deg, var(--cs-dash-accent), var(--cs-dash-accent-dark));
    box-shadow: 0 12px 22px -8px color-mix(in srgb, var(--cs-dash-accent) 55%, transparent);
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.case-dashboard-header__text {
    min-width: 0;
}

.case-dashboard-header__name {
    font-family: var(--cs-font-heading);
    font-weight: 900;
    font-size: clamp(17px, 1.3vw, 19px);
    color: var(--cs-text);
    margin: 0 0 2px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.case-dashboard-header__package {
    font-family: var(--cs-font-body);
    font-size: clamp(10px, 0.8vw, 12px);
    color: var(--cs-muted);
}

.case-dashboard-header__label {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--cs-dash-accent) 10%, white);
    border: 1px solid color-mix(in srgb, var(--cs-dash-accent) 20%, transparent);
    font-family: var(--cs-font-body);
    font-weight: 600;
    font-size: clamp(10px, 0.8vw, 11px);
    color: var(--cs-dash-accent-dark);
    letter-spacing: 0.3px;
    white-space: nowrap;
}

/* Result Highlight Bar */
.cs-result-bar {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 26px;
    border-radius: 20px;
    background: linear-gradient(135deg, color-mix(in srgb, var(--cs-dash-accent) 12%, white), color-mix(in srgb, var(--cs-dash-accent) 3%, white));
    border: 1px solid color-mix(in srgb, var(--cs-dash-accent) 22%, transparent);
    margin-bottom: 18px;
    opacity: 0;
}

.cs-result-bar__icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(19px, 1.5vw, 22px);
    color: var(--cs-white);
    background: linear-gradient(155deg, var(--cs-dash-accent), var(--cs-dash-accent-dark));
    box-shadow: 0 14px 26px -10px color-mix(in srgb, var(--cs-dash-accent) 55%, transparent);
    flex-shrink: 0;
}

.cs-result-bar__label {
    display: block;
    font-family: var(--cs-font-body);
    font-size: clamp(10px, 0.8vw, 11.5px);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--cs-muted);
    margin-bottom: 4px;
}

.cs-result-bar__value {
    display: block;
    font-family: var(--cs-font-heading);
    font-weight: 900;
    font-size: clamp(17px, 2.3vw, 27px);
    color: var(--cs-text);
    line-height: 1.15;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Testimonial Callout */
.cs-testimonial {
    position: relative;
    padding: 22px 26px 22px 58px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid var(--cs-line);
    margin-bottom: 24px;
    opacity: 0;
}

.cs-testimonial__quote-icon {
    position: absolute;
    left: 22px;
    top: 20px;
    font-size: clamp(17px, 1.3vw, 20px);
    color: color-mix(in srgb, var(--cs-dash-accent) 55%, transparent);
}

.cs-testimonial__text {
    font-family: var(--cs-font-body);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(13px, 1vw, 14.5px);
    line-height: 1.7;
    color: var(--cs-text);
    margin: 0 0 14px;
}

.cs-testimonial__author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cs-testimonial__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cs-white);
    font-family: var(--cs-font-body);
    font-weight: 700;
    font-size: clamp(11px, 0.9vw, 13px);
    background: linear-gradient(135deg, var(--cs-dash-accent), var(--cs-dash-accent-dark));
    flex-shrink: 0;
}

.cs-testimonial__author-text strong {
    display: block;
    font-family: var(--cs-font-body);
    font-weight: 700;
    font-size: clamp(11px, 0.9vw, 13px);
    color: var(--cs-text);
    line-height: 1.3;
}

.cs-testimonial__author-text span {
    font-family: var(--cs-font-body);
    font-size: clamp(10px, 0.8vw, 11.5px);
    color: var(--cs-muted);
}

/* Split View */
.cs-split {
    display: grid;
    grid-template-columns: 32% 68%;
    gap: 28px;
    margin-bottom: 24px;
}

.cs-split__left {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
}

.cs-split__right {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Phone mockup */
.cs-phone {
    position: relative;
    width: 190px;
}

.cs-phone__shadow {
    position: absolute;
    left: 50%;
    bottom: -5%;
    width: 74%;
    height: 24px;
    transform: translateX(-50%);
    filter: blur(14px);
    border-radius: 50%;
    background: radial-gradient(ellipse at center, color-mix(in srgb, var(--cs-dash-accent) 40%, transparent), transparent 72%);
}

.cs-phone__frame {
    position: relative;
    z-index: 1;
    width: 100%;
    aspect-ratio: 9 / 18.6;
    background: linear-gradient(155deg, #3a3c41 0%, #16171a 45%, #050607 100%);
    border-radius: 34px;
    border: 2px solid rgba(255, 255, 255, 0.14);
    padding: 7px;
    box-shadow:
        0 40px 70px -22px rgba(15, 23, 42, 0.4),
        0 16px 30px -12px color-mix(in srgb, var(--cs-dash-accent) 32%, transparent);
}

.cs-phone__island {
    position: absolute;
    top: 9px;
    left: 50%;
    transform: translateX(-50%);
    width: 54px;
    height: 15px;
    border-radius: 12px;
    background: #000;
    z-index: 3;
}

.cs-phone__screen {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 27px;
    overflow: hidden;
    background: #0b0d12;
}

.cs-phone__screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cs-phone__reflection {
    position: absolute;
    inset: 0;
    border-radius: 27px;
    pointer-events: none;
    background: linear-gradient(115deg,
            rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.02) 20%,
            rgba(255, 255, 255, 0) 42%, rgba(255, 255, 255, 0.08) 66%, rgba(255, 255, 255, 0) 100%);
    mix-blend-mode: overlay;
}

/* Chart metric */
.cs-metric-card {
    position: relative;
    padding: 16px 18px;
    border-radius: 16px;
    background: linear-gradient(155deg, var(--cs-dash-accent), var(--cs-dash-accent-dark));
    box-shadow: 0 14px 26px -12px color-mix(in srgb, var(--cs-dash-accent) 45%, transparent);
    opacity: 0;
}

.cs-metric-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.cs-metric-card__label {
    font-family: var(--cs-font-body);
    font-size: clamp(10px, 0.8vw, 11px);
    color: rgba(255, 255, 255, 0.78);
}

.cs-metric-card__delta {
    font-family: var(--cs-font-body);
    font-size: clamp(10px, 0.8vw, 11px);
    font-weight: 600;
    color: #d9f0ff;
}

.cs-metric-card__value {
    display: block;
    font-family: var(--cs-font-heading);
    font-weight: 900;
    font-size: clamp(21px, 1.8vw, 25px);
    color: #fff;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.cs-metric-card__chart {
    width: 100%;
    height: 34px;
    display: block;
    margin-top: 8px;
    overflow: visible;
}

.cs-metric-card__chart .area {
    fill: rgba(255, 255, 255, 0.18);
}

.cs-metric-card__chart .line {
    fill: none;
    stroke: #fff;
    stroke-width: 2;
    stroke-linecap: round;
}

/* Mini metrics */
.cs-metric-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.cs-metric-mini {
    padding: 14px 16px;
    border-radius: 14px;
    background: var(--cs-white);
    border: 1px solid var(--cs-line);
    opacity: 0;
}

.cs-metric-mini__label {
    display: block;
    font-family: var(--cs-font-body);
    font-size: clamp(10px, 0.8vw, 11px);
    font-weight: 600;
    color: var(--cs-muted);
    margin-bottom: 4px;
}

.cs-metric-mini__value {
    display: block;
    font-family: var(--cs-font-heading);
    font-weight: 900;
    font-size: clamp(16px, 1.2vw, 18px);
    color: var(--cs-text);
    margin-bottom: 8px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.cs-mini-bars {
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 24px;
}

.cs-mini-bars span {
    flex: 1;
    border-radius: 2px 2px 0 0;
    background: var(--cs-dash-accent);
    opacity: 0.85;
    transition: height 0.6s cubic-bezier(.4, 0, .2, 1);
}

/* Compare */
.cs-metric-compare {
    padding: 16px 18px;
    border-radius: 14px;
    background: var(--cs-white);
    border: 1px solid var(--cs-line);
    opacity: 0;
}

.cs-metric-compare__title {
    display: block;
    font-family: var(--cs-font-body);
    font-weight: 600;
    font-size: clamp(10px, 0.8vw, 11.5px);
    color: var(--cs-muted);
    margin-bottom: 12px;
}

.cs-compare-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 9px;
}

.cs-compare-row:last-child {
    margin-bottom: 0;
}

.cs-compare-label {
    flex-shrink: 0;
    width: 46px;
    font-family: var(--cs-font-body);
    font-size: clamp(9px, 0.7vw, 10.5px);
    font-weight: 600;
    color: var(--cs-muted);
}

.cs-compare-track {
    flex: 1;
    height: 9px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.cs-compare-fill {
    display: block;
    height: 100%;
    border-radius: 999px;
    width: 0%;
    transition: width 0.9s cubic-bezier(.4, 0, .2, 1);
}

.cs-compare-fill--before {
    background: rgba(0, 0, 0, 0.2);
}

.cs-compare-fill--after {
    background: linear-gradient(90deg, var(--cs-dash-accent), var(--cs-dash-accent-dark));
}

.cs-compare-value {
    flex-shrink: 0;
    width: 40px;
    text-align: right;
    font-family: var(--cs-font-body);
    font-weight: 700;
    font-size: clamp(10px, 0.8vw, 11px);
    color: var(--cs-text);
}

/* Details */
.cs-details {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
    opacity: 0;
}

.cs-detail-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--cs-white);
    border: 1px solid var(--cs-line);
    min-width: 0;
}

.cs-detail-card__icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--cs-dash-accent) 10%, white);
    color: var(--cs-dash-accent);
    font-size: clamp(11px, 0.9vw, 13px);
    flex-shrink: 0;
}

.cs-detail-card__text {
    min-width: 0;
}

.cs-detail-card__label {
    display: block;
    font-family: var(--cs-font-body);
    font-size: clamp(8px, 0.6vw, 10px);
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--cs-muted);
    margin-bottom: 2px;
}

.cs-detail-card__value {
    display: block;
    font-family: var(--cs-font-heading);
    font-weight: 900;
    font-size: clamp(12px, 0.9vw, 13.5px);
    color: var(--cs-text);
    line-height: 1.3;
    word-break: break-word;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Timeline */
.cs-timeline {
    padding-top: 20px;
    border-top: 1px solid var(--cs-line);
    opacity: 0;
}

.cs-timeline__track {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 4px;
}

.cs-timeline__track::before {
    content: '';
    position: absolute;
    left: 6%;
    right: 6%;
    top: 7px;
    height: 2px;
    background: var(--cs-line);
    z-index: 0;
}

.cs-timeline__step {
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.cs-timeline__dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cs-white);
    border: 2px solid var(--cs-line);
    transition: background 0.4s ease, border-color 0.4s ease;
}

.cs-timeline__step.is-done .cs-timeline__dot {
    background: var(--cs-dash-accent);
    border-color: var(--cs-dash-accent);
}

.cs-timeline__label {
    font-family: var(--cs-font-body);
    font-size: clamp(8px, 0.6vw, 10.5px);
    font-weight: 600;
    color: var(--cs-muted);
}

.cs-timeline__step.is-done .cs-timeline__label {
    color: var(--cs-text);
}

@media (prefers-reduced-motion: reduce) {
    .case-studies * {
        animation: none !important;
        transition: none !important;
    }
}

/* ============================================================
   RESPONSIVE - Large Desktop (1300px to 1468px)
============================================================ */
@media (min-width: 1300px) and (max-width: 1468px) {
    .case-studies__container {
        max-width: 1220px;
    }

    .case-studies__grid {
        gap: 20px;
    }

    .case-card {
        padding: 0 20px 20px;
    }

    .case-dashboard-inner {
        padding: 8px 30px 28px;
    }
}

/* ============================================================
   RESPONSIVE - Desktop (992px to 1299px)
============================================================ */
@media (min-width: 992px) and (max-width: 1299px) {
    .case-studies__container {
        max-width: 96%;
        padding: 0 20px;
    }

    .case-studies__grid {
        gap: 18px;
    }

    .case-card {
        padding: 0 18px 20px;
        min-height: 200px;
    }

    .case-card__icon-wrap {
        width: 48px;
        height: 48px;
        font-size: 19px;
    }

    .cs-phone {
        width: 160px;
    }

    .cs-details {
        grid-template-columns: repeat(3, 1fr);
    }

    .case-dashboard-inner {
        padding: 8px 24px 24px;
    }
}

/* ============================================================
   RESPONSIVE - Tablet (max-width: 991.98px)
============================================================ */
@media (max-width: 991.98px) {
    .case-studies {
        padding: 110px 0 120px;
    }

    .case-studies__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .cs-split {
        grid-template-columns: 1fr;
    }

    .cs-split__left {
        padding: 12px 0 4px;
    }

    .cs-phone {
        width: 160px;
    }

    .cs-details {
        grid-template-columns: repeat(2, 1fr);
    }

    .cs-timeline__label {
        font-size: 9.5px;
    }
}

/* ============================================================
   RESPONSIVE - Mobile (max-width: 576px)
============================================================ */
@media (max-width: 576px) {
    .case-studies {
        padding: 40px 0 40px;
    }

    .case-studies__container {
        padding: 0 16px;
    }

    .case-studies__heading {
        font-size: clamp(28px, 8.2vw, 38px);
    }

    .case-studies__desc {
        font-size: 15px;
    }

    .case-studies__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .case-card {
        padding: 0 18px 20px;
        cursor: pointer;
        touch-action: manipulation;
        min-height: auto;
    }

    .case-card__meta {
        flex-direction: column;
        align-items: stretch;
        pointer-events: none;
    }

    .case-card__expand-btn {
        justify-content: center;
        padding: 10px 20px;
        min-height: 44px;
        pointer-events: auto;
        width: 100%;
        font-size: 13px;
    }

    /* HIDE desktop dashboard on mobile */
    .case-dashboard-wrapper {
        display: none !important;
    }

    /* SHOW mobile dashboard - each card has its own */
    .case-dashboard-mobile-wrapper {
        display: none;
        margin-top: 16px;
        width: 100%;
    }

    .case-dashboard-mobile-wrapper.is-visible {
        display: block;
        height: auto;
        opacity: 1;
    }

    .case-dashboard-mobile-wrapper .case-dashboard-inner {
        padding: 4px 16px 20px;
        border-radius: 20px;
        max-height: 80vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Mobile dashboard component adjustments */
    .case-dashboard-header {
        flex-wrap: wrap;
        gap: 10px;
        padding: 16px 0 14px;
    }

    .case-dashboard-header__label {
        margin-left: 0;
        font-size: 10px;
        padding: 4px 12px;
    }

    .case-dashboard-header__icon {
        width: 38px;
        height: 38px;
        font-size: 16px;
    }

    .case-dashboard-header__name {
        font-size: 17px;
    }

    .case-dashboard-header__package {
        font-size: 11px;
    }

    .cs-result-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 16px 18px;
        border-radius: 16px;
    }

    .cs-result-bar__icon {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .cs-result-bar__value {
        font-size: 16px;
    }

    .cs-testimonial {
        padding: 16px 16px 16px 44px;
        border-radius: 16px;
    }

    .cs-testimonial__quote-icon {
        left: 16px;
        top: 16px;
        font-size: 16px;
    }

    .cs-testimonial__text {
        font-size: 13px;
    }

    .cs-split {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .cs-split__left {
        padding: 8px 0;
    }

    .cs-phone {
        width: 140px;
    }

    .cs-metric-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .cs-metric-card {
        padding: 14px 16px;
    }

    .cs-metric-card__value {
        font-size: 20px;
    }

    .cs-metric-mini {
        padding: 12px 14px;
    }

    .cs-metric-mini__value {
        font-size: 16px;
    }

    .cs-metric-compare {
        padding: 14px 16px;
    }

    .cs-details {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .cs-detail-card {
        padding: 10px 12px;
        border-radius: 12px;
    }

    .cs-detail-card__icon {
        width: 28px;
        height: 28px;
        font-size: 11px;
    }

    .cs-detail-card__value {
        font-size: 12px;
    }

    .cs-timeline {
        padding-top: 14px;
    }

    .cs-timeline__track {
        flex-wrap: wrap;
        row-gap: 12px;
    }

    .cs-timeline__track::before {
        display: none;
    }

    .cs-timeline__step {
        flex: 0 0 33.33%;
    }

    .cs-timeline__dot {
        width: 14px;
        height: 14px;
    }

    .cs-timeline__label {
        font-size: 9px;
    }

    .case-card.is-active {
        border-color: var(--cs-card-accent);
        background: color-mix(in srgb, var(--cs-card-accent) 8%, white);
        box-shadow:
            0 20px 48px -20px color-mix(in srgb, var(--cs-card-accent) 35%, transparent),
            0 0 0 1px color-mix(in srgb, var(--cs-card-accent) 30%, transparent);
    }
}

/* ============================================================
   RESPONSIVE - Very Small Mobile (max-width: 400px)
============================================================ */
@media (max-width: 400px) {
    .case-studies__heading {
        font-size: clamp(24px, 7vw, 30px);
    }

    .case-card {
        padding: 0 14px 16px;
    }

    .case-card__top {
        gap: 12px;
    }

    .case-card__icon-wrap {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .case-card__app-name {
        font-size: 16px;
    }

    .case-card__quickstats {
        flex-wrap: wrap;
    }

    .case-card__qstat {
        font-size: 10px;
        padding: 4px 8px;
    }

    .case-dashboard-mobile-wrapper .case-dashboard-inner {
        padding: 4px 12px 16px;
    }

    .cs-details {
        grid-template-columns: 1fr;
    }

    .cs-phone {
        width: 120px;
    }
}

/* ============================================================
   FONT FIX - Ensure consistent font rendering across all screens
============================================================ */
@supports (font-variation-settings: normal) {
    .case-studies__heading,
    .case-card__app-name,
    .case-dashboard-header__name,
    .cs-result-bar__value,
    .cs-metric-card__value,
    .cs-metric-mini__value,
    .cs-detail-card__value {
        font-variation-settings: 'wght' 900, 'wdth' 100;
    }
}

/* Fallback for browsers that don't support variable fonts */
@supports not (font-variation-settings: normal) {
    .case-studies__heading,
    .case-card__app-name,
    .case-dashboard-header__name,
    .cs-result-bar__value,
    .cs-metric-card__value,
    .cs-metric-mini__value,
    .cs-detail-card__value {
        font-weight: 900;
        letter-spacing: -0.5px;
    }
}