/* ============================================================
   HERSHEY INFORMATION SYSTEM — Main Stylesheet
   ============================================================ */

/* ---------- Variables ---------- */
:root {
    /* 배경 — 이전보다 밝은 딥 네이비로 가독성 향상 */
    --bg:        #080D1A;
    --bg2:       #0F1528;

    /* 카드 — 더 잘 보이도록 불투명도 상향 */
    --card:      rgba(255,255,255,0.07);
    --card-h:    rgba(255,255,255,0.12);
    --border:    rgba(255,255,255,0.13);
    --border-h:  rgba(255,255,255,0.28);

    --blue:      #5272F5;
    --cyan:      #22C8E8;
    --purple:    #8B5CF6;
    --green:     #34D399;

    --grad:      linear-gradient(135deg, #5272F5 0%, #8B5CF6 100%);
    --grad-text: linear-gradient(135deg, #93B8FF 0%, #C4A8FF 100%);
    --grad-cyan: linear-gradient(135deg, #5272F5 0%, #22C8E8 100%);

    /* 텍스트 — 충분한 명도 대비 확보 */
    --text:      #F0F4FF;
    --text-sub:  #A8B8CC;   /* 이전 #8B949E → 훨씬 밝게 */
    --text-mute: #6A7E96;   /* 이전 #4A5568 → 밝게 */

    --nav-h:     72px;
    --container: 1240px;
    --sec-pad:   120px;
    --radius:    16px;
    --radius-sm: 10px;
    --radius-lg: 24px;

    --ease:      cubic-bezier(0.4, 0, 0.2, 1);
    --t:         0.3s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'Noto Sans KR', 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, select, textarea {
    font: inherit;
    color: var(--text);
    background: transparent;
    border: none;
    outline: none;
}

/* ---------- Layout ---------- */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
}
.section { padding: var(--sec-pad) 0; position: relative; }

/* ---------- Typography ---------- */
.text-grad {
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: all var(--t) var(--ease);
    white-space: nowrap;
}
.btn-primary {
    background: var(--grad);
    color: #fff;
    box-shadow: 0 0 30px rgba(67,97,238,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(67,97,238,0.5);
}
.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-h);
    backdrop-filter: blur(10px);
}
.btn-outline:hover {
    background: var(--card-h);
    border-color: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}
.btn-lg { padding: 18px 36px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; border-radius: var(--radius-sm); }

/* ---------- Glass Card ---------- */
.glass-card {
    background: var(--card);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
}

/* ---------- Section Header ---------- */
.sec-header {
    text-align: center;
    margin-bottom: 72px;
}
.sec-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--cyan);
    background: rgba(6,182,212,0.1);
    border: 1px solid rgba(6,182,212,0.25);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 20px;
}
.sec-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 20px;
}
.sec-desc {
    font-size: 1.0625rem;
    color: var(--text-sub);
    line-height: 1.85;
    font-weight: 400;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: background var(--t) var(--ease), border-color var(--t) var(--ease),
                backdrop-filter var(--t) var(--ease);
    border-bottom: 1px solid transparent;
}
.header.scrolled {
    background: rgba(5,8,15,0.85);
    border-bottom-color: var(--border);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}
.navbar { height: var(--nav-h); }
.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.logo-mark {
    width: 38px; height: 38px;
    background: var(--grad);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.1rem;
    color: #fff;
    letter-spacing: 0;
    flex-shrink: 0;
}
.logo-text-wrap { display: flex; flex-direction: column; }
.logo-main {
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    line-height: 1.1;
}
.logo-sub {
    font-size: 0.625rem;
    letter-spacing: 0.08em;
    color: var(--text-sub);
    text-transform: uppercase;
    line-height: 1;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-sub);
    padding: 8px 14px;
    border-radius: 8px;
    transition: color var(--t), background var(--t);
}
.nav-link:hover { color: var(--text); background: var(--card-h); }
.nav-cta-btn {
    background: var(--grad);
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
}
.nav-cta-btn:hover { opacity: 0.9; background: var(--grad) !important; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}
.hamburger span {
    display: block;
    width: 22px; height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform var(--t), opacity var(--t);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: calc(var(--nav-h) + 60px) 24px 80px;
}

#particleCanvas {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.hero-blobs { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
}
.blob-1 {
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(67,97,238,0.22) 0%, transparent 70%);
    top: -200px; right: -100px;
}
.blob-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(124,58,237,0.18) 0%, transparent 70%);
    bottom: -100px; left: -100px;
}
.blob-3 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%);
    top: 40%; left: 50%;
    transform: translate(-50%,-50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 860px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--cyan);
    background: rgba(6,182,212,0.08);
    border: 1px solid rgba(6,182,212,0.25);
    padding: 8px 18px;
    border-radius: 50px;
    margin-bottom: 32px;
}
.badge-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--cyan);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%,100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.15;
    margin-bottom: 28px;
}

.hero-desc {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: #BCC9DC;
    line-height: 1.9;
    margin-bottom: 40px;
    font-weight: 400;
}

.hero-btns {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 48px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-wrap: wrap;
    gap: 0;
}
.stat { text-align: center; padding: 0 36px; }
.stat-num {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    margin-bottom: 6px;
}
.stat-lbl {
    font-size: 0.8125rem;
    color: var(--text-sub);
    font-weight: 500;
    white-space: nowrap;
}
.stat-sep {
    width: 1px;
    height: 48px;
    background: var(--border);
    flex-shrink: 0;
}

.scroll-hint {
    position: absolute;
    bottom: 36px; left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.scroll-dot {
    width: 24px; height: 40px;
    border: 2px solid var(--border-h);
    border-radius: 12px;
    position: relative;
    margin: 0 auto;
}
.scroll-dot::before {
    content: '';
    position: absolute;
    top: 6px; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 8px;
    background: var(--cyan);
    border-radius: 2px;
    animation: scroll-ball 1.8s ease-in-out infinite;
}
@keyframes scroll-ball {
    0% { top: 6px; opacity: 1; }
    100% { top: 20px; opacity: 0; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-sec { background: var(--bg2); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
    align-items: start;
}

.about-card { padding: 40px; }
.card-h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    letter-spacing: -0.02em;
}

.info-dl {}
.info-row {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    font-size: 0.9375rem;
    align-items: start;
}
.info-row:last-child { border-bottom: none; }
.info-row dt {
    color: #7A9AB8;
    font-weight: 600;
    white-space: nowrap;
    font-size: 0.875rem;
}
.info-row dd { font-weight: 500; line-height: 1.65; color: var(--text); }

.values-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.about-intro {
    text-align: center;
    font-size: 1.05rem;
    color: var(--text-sub);
    line-height: 1.9;
    max-width: 720px;
    margin: 0 auto 56px;
}
.values-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.values-row .value-card {
    flex-direction: column;
    gap: 16px;
}
.value-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color var(--t), background var(--t), transform var(--t);
}
.value-card:hover {
    border-color: var(--hb, var(--blue));
    box-shadow: 0 8px 40px var(--hg, rgba(82,114,245,0.2));
    background: var(--card-h);
    transform: translateY(-4px);
}
.val-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, rgba(67,97,238,0.15), rgba(124,58,237,0.15));
    border: 1px solid rgba(67,97,238,0.25);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--blue);
}
.val-icon svg { width: 20px; height: 20px; }
.val-body h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}
.val-body p { font-size: 0.9rem; color: var(--text-sub); line-height: 1.75; }

/* ============================================================
   SERVICES
   ============================================================ */
.services-sec { position: relative; overflow: hidden; }
.svc-bg-blob {
    position: absolute;
    width: 800px; height: 800px;
    top: -200px; right: -200px;
    background: radial-gradient(circle, rgba(67,97,238,0.08) 0%, transparent 70%);
    filter: blur(60px);
    pointer-events: none;
}

.svc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.svc-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    overflow: hidden;
    transition: border-color var(--t), background var(--t), transform var(--t), box-shadow var(--t);
}
.svc-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad);
    opacity: 0;
    transition: opacity var(--t);
    z-index: 0;
}
.svc-card:hover {
    border-color: var(--hb, var(--blue));
    background: var(--card-h);
    transform: translateY(-6px);
    box-shadow: 0 24px 60px var(--hg, rgba(82,114,245,0.15));
}
.svc-card > * { position: relative; z-index: 1; }

.svc-num {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-mute);
    margin-bottom: 20px;
}
.svc-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, rgba(67,97,238,0.15), rgba(6,182,212,0.1));
    border: 1px solid rgba(67,97,238,0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--blue);
    transition: background var(--t), box-shadow var(--t);
}
.svc-card:hover .svc-icon {
    color: var(--hb, var(--blue));
    border-color: var(--hb, var(--blue));
    box-shadow: 0 0 20px var(--hg, rgba(82,114,245,0.3));
}
.svc-icon svg { width: 24px; height: 24px; }

.svc-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 4px;
}
.svc-en {
    font-size: 0.75rem;
    color: var(--text-mute);
    letter-spacing: 0.04em;
    margin-bottom: 16px;
    font-weight: 500;
}
.svc-desc {
    font-size: 0.9375rem;
    color: var(--text-sub);
    line-height: 1.8;
    margin-bottom: 20px;
}
.svc-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.svc-list li {
    font-size: 0.875rem;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 8px;
}
.svc-list li::before {
    content: '';
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--cyan);
    flex-shrink: 0;
}

/* ============================================================
   HISTORY / TIMELINE
   ============================================================ */
.history-sec { background: var(--bg2); }

.timeline {
    position: relative;
    max-width: 920px;
    margin: 0 auto;
    padding: 12px 0 12px;
}
.tl-spine {
    position: absolute;
    left: 50%;
    top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--border) 8%, var(--border) 92%, transparent);
    transform: translateX(-50%);
}

/* Each row: 3-column grid — card | year | card */
.tl-item {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 96px 1fr;
    align-items: start;
    margin-bottom: 44px;
}
.tl-item:last-child { margin-bottom: 0; }

/* Year badge — always center column */
.tl-year {
    grid-column: 2;
    grid-row: 1;
    text-align: center;
    padding: 4px 0 0;
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
}
/* Dot centered on spine, below year text */
.tl-year::after {
    content: '';
    display: block;
    width: 13px; height: 13px;
    background: var(--grad);
    border: 2px solid var(--bg2);
    border-radius: 50%;
    margin: 6px auto 0;
    position: relative;
    z-index: 3;
}
.tl-year-now { font-size: 1.5rem; }

/* LEFT item: card in column 1, nothing in column 3 */
.tl-left .tl-year { grid-column: 2; }
.tl-left .tl-card  { grid-column: 1; grid-row: 1; padding-right: 28px; }

/* RIGHT item: nothing in column 1, card in column 3 */
.tl-right .tl-year { grid-column: 2; }
.tl-right .tl-card  { grid-column: 3; grid-row: 1; padding-left: 28px; }

.tl-card { padding: 24px 28px; }
.tl-card-now {
    border-color: rgba(67,97,238,0.35);
    background: linear-gradient(135deg, rgba(67,97,238,0.08), rgba(124,58,237,0.06));
}
.tl-badge-now {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--green);
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
    padding: 3px 10px;
    border-radius: 50px;
    margin-bottom: 12px;
}

.tl-event {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    font-size: 0.9375rem;
    color: var(--text);
    border-bottom: 1px solid rgba(255,255,255,0.07);
}
.tl-event:last-child { border-bottom: none; }
.tl-mo {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--cyan);
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 80px;
    padding-top: 2px;
}
.tl-proj {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 0;
}
.tl-proj > span:first-child {
    line-height: 1.5;
}
.tl-client {
    font-size: 0.775rem;
    font-weight: 500;
    color: var(--text-mute);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.proj-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.proj-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color var(--t), background var(--t), transform var(--t), box-shadow var(--t);
}
.proj-card:hover {
    border-color: var(--hb, var(--blue));
    background: var(--card-h);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px var(--hg, rgba(82,114,245,0.18));
}

.proj-period {
    font-size: 0.775rem;
    color: var(--cyan);
    font-weight: 600;
    letter-spacing: 0.03em;
    margin-bottom: 10px;
    opacity: 0.85;
}

.proj-card h3 {
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.55;
    margin-bottom: 14px;
    color: var(--text);
}

.proj-client {
    font-size: 0.875rem;
    color: var(--text-sub);
    padding: 4px 0;
    font-weight: 500;
}

/* ============================================================
   PARTNERS
   ============================================================ */
.partners-sec { background: var(--bg2); overflow: hidden; }

/* partners-label / container-label 제거됨 (통합 배너로 대체) */

/* ── Marquee Rolling Banner ── */
.marquee-wrap {
    position: relative;
    overflow: hidden;
    padding: 8px 0;
    max-width: var(--container);
    margin: 0 auto;
}
.marquee-wrap::before,
.marquee-wrap::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}
.marquee-wrap::before {
    left: 0;
    background: linear-gradient(to right, var(--bg2) 0%, transparent 100%);
}
.marquee-wrap::after {
    right: 0;
    background: linear-gradient(to left, var(--bg2) 0%, transparent 100%);
}

.marquee-track {
    display: flex;
    gap: 16px;
    width: max-content;
    animation: marquee-scroll 38s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
.marquee-track--rev  { animation: marquee-scroll-rev 38s linear infinite; }
.marquee-track--rev:hover { animation-play-state: paused; }

@keyframes marquee-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
@keyframes marquee-scroll-rev {
    0%   { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* 파트너칩 & 고객사 태그 — 동일 스타일 */
.partner-chip,
.client-tag {
    display: inline-flex;
    align-items: center;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 36px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
    color: var(--text);
    transition: background var(--t), border-color var(--t), color var(--t), transform var(--t);
    flex-shrink: 0;
    cursor: default;
}

/* hover 색상 차별화 */
.partner-chip:hover {
    background: linear-gradient(135deg, rgba(82,114,245,0.2), rgba(139,92,246,0.15));
    border-color: rgba(82,114,245,0.6);
    color: #A5B8FF;
    transform: translateY(-2px);
}
.client-tag:hover {
    background: linear-gradient(135deg, rgba(34,200,232,0.15), rgba(82,114,245,0.1));
    border-color: rgba(34,200,232,0.55);
    color: var(--cyan);
    transform: translateY(-2px);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-center {
    display: flex;
    justify-content: center;
}

.contact-form {
    padding: 48px 52px;
    width: 100%;
    max-width: 680px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}
.form-group label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-sub);
    letter-spacing: 0.02em;
}
.req { color: var(--blue); }
.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.9375rem;
    color: var(--text);
    transition: border-color var(--t), background var(--t);
    width: 100%;
    resize: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: rgba(67,97,238,0.6);
    background: rgba(67,97,238,0.05);
    outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-mute); }
.form-group select option { background: #0D1117; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    padding: 48px 0 32px;
}
.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
    gap: 24px;
    flex-wrap: wrap;
}
.footer-logo { flex-shrink: 0; }
.footer-nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.footer-nav a {
    font-size: 0.875rem;
    color: var(--text-sub);
    padding: 6px 12px;
    border-radius: 6px;
    transition: color var(--t), background var(--t);
}
.footer-nav a:hover { color: var(--text); background: var(--card-h); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-mute);
}
.footer-addr { text-align: right; }

/* ============================================================
   CARD ACCENT COLOR SYSTEM
   ============================================================ */

/* 6-color palette */
:root {
    --c1: #5272F5;  --c1g: rgba(82,114,245,0.22);
    --c2: #8B5CF6;  --c2g: rgba(139,92,246,0.22);
    --c3: #22C8E8;  --c3g: rgba(34,200,232,0.22);
    --c4: #34D399;  --c4g: rgba(52,211,153,0.22);
    --c5: #F97316;  --c5g: rgba(249,115,22,0.22);
    --c6: #EC4899;  --c6g: rgba(236,72,153,0.22);
}

/* About card */
.about-card { --hb: var(--c3); --hg: var(--c3g); }
.about-card {
    transition: border-color var(--t), background var(--t), transform var(--t), box-shadow var(--t);
}
.about-card:hover {
    border-color: var(--hb);
    box-shadow: 0 16px 48px var(--hg);
    transform: translateY(-4px);
    background: var(--card-h);
}

/* Value cards */
.value-card:nth-child(1) { --hb: var(--c3); --hg: var(--c3g); }
.value-card:nth-child(2) { --hb: var(--c5); --hg: var(--c5g); }
.value-card:nth-child(3) { --hb: var(--c6); --hg: var(--c6g); }
.value-card:hover .val-icon {
    color: var(--hb, var(--blue));
    border-color: var(--hb, var(--blue));
}

/* Service cards */
.svc-card:nth-child(1) { --hb: var(--c1); --hg: var(--c1g); }
.svc-card:nth-child(2) { --hb: var(--c2); --hg: var(--c2g); }
.svc-card:nth-child(3) { --hb: var(--c3); --hg: var(--c3g); }
.svc-card:nth-child(4) { --hb: var(--c5); --hg: var(--c5g); }

/* Project cards — 6-color cycle */
.proj-card:nth-child(6n+1) { --hb: var(--c1); --hg: var(--c1g); }
.proj-card:nth-child(6n+2) { --hb: var(--c2); --hg: var(--c2g); }
.proj-card:nth-child(6n+3) { --hb: var(--c3); --hg: var(--c3g); }
.proj-card:nth-child(6n+4) { --hb: var(--c4); --hg: var(--c4g); }
.proj-card:nth-child(6n+5) { --hb: var(--c5); --hg: var(--c5g); }
.proj-card:nth-child(6n+6) { --hb: var(--c6); --hg: var(--c6g); }

/* Timeline cards */
.tl-item:nth-child(1) .tl-card { --hb: var(--c1); --hg: var(--c1g); }
.tl-item:nth-child(2) .tl-card { --hb: var(--c4); --hg: var(--c4g); }
.tl-item:nth-child(3) .tl-card { --hb: var(--c2); --hg: var(--c2g); }
.tl-item:nth-child(4) .tl-card { --hb: var(--c5); --hg: var(--c5g); }
.tl-item:nth-child(5) .tl-card { --hb: var(--c3); --hg: var(--c3g); }
.tl-item:nth-child(6) .tl-card { --hb: var(--c6); --hg: var(--c6g); }
.tl-card {
    transition: border-color var(--t), background var(--t), transform var(--t), box-shadow var(--t);
}
.tl-card:hover {
    border-color: var(--hb, var(--blue));
    box-shadow: 0 12px 40px var(--hg, rgba(82,114,245,0.18));
    background: var(--card-h);
    transform: translateY(-3px);
}

/* ── Logo Items (unified partner + client marquee) ── */
.logo-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0 32px;
    height: 76px;
    min-width: 150px;
    flex-shrink: 0;
    transition: border-color var(--t), background var(--t), transform var(--t);
    cursor: default;
}
.logo-item:hover {
    border-color: var(--border-h);
    background: var(--card-h);
    transform: translateY(-3px);
}
.logo-item img {
    max-height: 38px;
    max-width: 120px;
    object-fit: contain;
    display: block;
    padding: 5px 12px;
    background: rgba(255,255,255,0.93);
    border-radius: 6px;
    opacity: 0.88;
    transition: opacity var(--t), transform var(--t);
}
.logo-item:hover img { opacity: 1; transform: scale(1.04); }
.logo-item--dark { background: rgba(15, 25, 55, 0.85); }
.logo-item--dark img {
    filter: brightness(0) invert(1);
    background: transparent;
    padding: 0;
    opacity: 0.85;
}
.logo-txt {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-sub);
    text-align: center;
    line-height: 1.35;
    white-space: nowrap;
    letter-spacing: -0.01em;
    transition: color var(--t);
}
.logo-item:hover .logo-txt { color: var(--text); }

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.anim-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s var(--ease) forwards;
}
.anim-d1 { animation-delay: 0.15s; }
.anim-d2 { animation-delay: 0.3s; }
.anim-d3 { animation-delay: 0.45s; }
.anim-d4 { animation-delay: 0.6s; }

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

.reveal,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal         { transform: translateY(40px); }
.reveal-left    { transform: translateX(-40px); }
.reveal-right   { transform: translateX(40px); }

.reveal.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: none;
    transition-delay: var(--d, 0ms);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    :root { --sec-pad: 80px; }
    .about-grid { grid-template-columns: 1fr; }
    .values-row { grid-template-columns: 1fr; }
    .svc-grid { grid-template-columns: 1fr 1fr; }
    .proj-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-form { padding: 36px 32px; }
    .footer-addr { text-align: left; }

    /* Timeline collapse to single column */
    .tl-spine { left: 20px; transform: none; }
    .tl-item {
        display: block;
        padding-left: 56px;
        position: relative;
    }
    .tl-item::before {
        content: '';
        position: absolute;
        left: 14px; top: 16px;
        width: 12px; height: 12px;
        background: var(--grad);
        border: 2px solid var(--bg2);
        border-radius: 50%;
        z-index: 2;
    }
    .tl-year {
        font-size: 1.25rem;
        font-weight: 900;
        letter-spacing: -0.03em;
        background: var(--grad-text);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        margin-bottom: 12px;
        display: block;
        position: static;
        text-align: left;
    }
    .tl-year::after { display: none; }
    .tl-left .tl-card,
    .tl-right .tl-card {
        grid-column: unset;
        padding: 20px;
    }
}

@media (max-width: 768px) {
    :root { --nav-h: 64px; --sec-pad: 64px; }

    .nav-links {
        position: fixed;
        top: var(--nav-h); left: 0; right: 0;
        background: rgba(5,8,15,0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: stretch;
        padding: 0 24px;
        gap: 4px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        pointer-events: none;
        transition: max-height 0.35s var(--ease), opacity 0.25s var(--ease), padding 0.35s var(--ease);
        z-index: 999;
    }
    .nav-links.open {
        max-height: 480px;
        opacity: 1;
        pointer-events: auto;
        padding: 16px 24px 24px;
    }
    .nav-link { padding: 12px 16px; border-radius: 10px; }
    .nav-cta-btn { text-align: center; margin-top: 8px; }
    .hamburger { display: flex; }

    .hero-stats { padding: 20px 24px; gap: 16px 0; }
    .stat { padding: 0 20px; }
    .stat-sep { height: 32px; }

    .svc-grid { grid-template-columns: 1fr; }
    .proj-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: 28px 24px; }

    .footer-top { flex-direction: column; align-items: flex-start; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .footer-addr { text-align: left; }

    .hero-btns { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 300px; justify-content: center; }

    .sec-header { margin-bottom: 48px; }
    .partners-row { flex-direction: column; }
    .partner-chip { min-width: unset; }
}

@media (max-width: 480px) {
    .container { padding: 0 20px; }
    .hero-stats { flex-direction: column; align-items: center; }
    .stat-sep { width: 60px; height: 1px; }
    .hero-title { font-size: 2.2rem; }
    .about-card { padding: 28px 20px; }
    .svc-card { padding: 28px 24px; }
    .contact-form { padding: 28px 20px; }
}