/* ==========================================================================
   Chiến dịch "Viết Tiếp Tuổi Thơ" — Giao diện riêng cho trang chien-dich.html
   Tinh thần: cuốn nhật ký tuổi học trò — mực xanh trên giấy kem, doodle, máy
   bay giấy, màu nước. Ấm áp & hoài niệm nhưng vẫn tiết chế, chuyên nghiệp.
   Nạp SAU css/style.css, chỉ tác động các class có tiền tố .vt- (Viết Tiếp).
   Nguyên tắc ảnh: LUÔN hiển thị đúng tỉ lệ gốc, TUYỆT ĐỐI không cắt xén.
   ========================================================================== */

:root {
  --vt-paper:      #f8f1e1;   /* giấy kem nhạt   */
  --vt-paper-2:    #efe6d2;   /* giấy kem đậm hơn */
  --vt-cream-line: #e7dabf;   /* viền giấy       */
  --vt-sky:        #eaf3fb;   /* trời xanh nhạt   */
  --vt-sky-2:      #d9e9f9;
  --vt-navy:       #0a3a6b;   /* mực xanh đậm     */
  --vt-brush:      #105fad;   /* xanh chủ đạo     */
  --vt-brush-dk:   #0c4a87;
  --vt-sun:        #fbc411;   /* vàng nắng        */
  --vt-doodle:     #a9c9e8;   /* nét vẽ nhạt      */
  --vt-ink:        #26405a;   /* chữ thân         */
  --vt-muted:      #62778c;
}

/* ---------- Nền trang & lớp chữ viết tay (dùng rất tiết chế) ---------- */
.vt-page { background: #fff; }
/* Font viết tay chính của chiến dịch: SVN-Blog Script (Việt-hóa, đủ dấu) */
@font-face {
  font-family: 'SVN-Blog Script';
  src: url('../assets/fonts/SVN-Blog-Script.ttf') format('truetype');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
.vt-hand {
  font-family: 'SVN-Blog Script', 'Segoe UI', cursive;
  font-weight: 400;
  letter-spacing: 0.2px;
}

/* ---------- Khối section & nền luân phiên tạo nhịp ---------- */
.vt-sec { position: relative; padding: 60px 0; overflow: hidden; }
.vt-sec--paper { background: var(--vt-paper); }
.vt-sec--sky   { background: linear-gradient(180deg, #ffffff 0%, var(--vt-sky) 100%); }
.vt-sec--white { background: #fff; }

/* Vân giấy chấm bi rất mờ — gợi trang vở kẻ ô, không gây rối */
.vt-dotted::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(var(--vt-doodle) 1.1px, transparent 1.3px);
  background-size: 26px 26px;
  opacity: 0.22;
  pointer-events: none;
}
.vt-sec > .container { position: relative; z-index: 2; }

/* ---------- Tiêu đề mục dùng chung ---------- */
.vt-head { text-align: center; max-width: 720px; margin: 0 auto 36px; }
.vt-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--vt-brush); font-size: 24px; line-height: 1;
  margin-bottom: 8px;
}
.vt-kicker svg { width: 20px; height: 20px; fill: var(--vt-sun); }
.vt-head h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  color: var(--vt-navy); font-weight: 800; line-height: 1.2;
}
.vt-head h2 em { font-style: normal; color: var(--vt-brush); }
.vt-head p { margin-top: 14px; color: var(--vt-muted); font-size: 16px; line-height: 1.75; }

/* Nét gạch chân vàng kiểu cọ vẽ dưới tiêu đề */
.vt-underline { position: relative; display: inline-block; }
.vt-underline::after {
  content: ''; position: absolute; left: 6%; right: 6%; bottom: -10px; height: 7px;
  background: var(--vt-sun); border-radius: 40% 60% 55% 45% / 100% 100% 100% 100%;
  opacity: 0.85;
}

/* ---------- Khung ảnh kiểu "ảnh dán vào nhật ký" ---------- */
.vt-figure { position: relative; }
.vt-figure img { width: 100%; height: auto; display: block; border-radius: 8px; }
.vt-frame {
  background: #fff; padding: 12px 12px 14px; border-radius: 12px;
  box-shadow: 0 26px 54px rgba(16, 50, 80, 0.16);
  border: 1px solid #fff;
}
.vt-tilt   { transform: rotate(-1.8deg); }
.vt-tilt-r { transform: rotate(1.6deg); }
/* Miếng băng keo washi ở góc */
.vt-tape { position: absolute; width: 86px; height: 26px; z-index: 3;
  background: rgba(251, 196, 17, 0.6); box-shadow: 0 2px 6px rgba(0,0,0,0.08); }
.vt-tape.tl { top: -12px; left: 22px; transform: rotate(-8deg); }
.vt-tape.tr { top: -12px; right: 22px; transform: rotate(7deg); background: rgba(16, 95, 173, 0.32); }
.vt-tape.bl { bottom: -12px; left: 30px; transform: rotate(6deg); background: rgba(16, 95, 173, 0.28); }

/* ---------- Doodle trang trí ---------- */
.vt-doodle-el { position: absolute; pointer-events: none; z-index: 1; opacity: 0.9; }
.vt-doodle-el svg { display: block; }
.vt-plane   { fill: none; stroke: var(--vt-brush); stroke-width: 2; }
.vt-plane-fill { fill: #fff; stroke: var(--vt-brush); stroke-width: 2; stroke-linejoin: round; }
.vt-dash    { fill: none; stroke: var(--vt-doodle); stroke-width: 2.4; stroke-dasharray: 2 9; stroke-linecap: round; }
.vt-star    { fill: var(--vt-sun); }

/* ==========================================================================
   HERO — trang bìa nhật ký
   ========================================================================== */
.vt-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--vt-sky) 0%, #fbfdff 52%, var(--vt-paper) 100%);
  padding: 48px 0 56px;
}
.vt-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(var(--vt-doodle) 1.1px, transparent 1.3px);
  background-size: 28px 28px; opacity: 0.14; pointer-events: none;
}
.vt-hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 54px; align-items: center;
}
.vt-hero-tag {
  display: inline-flex; align-items: center; gap: 9px;
  background: #fff; border: 1px solid var(--vt-sky-2);
  color: var(--vt-brush); font-weight: 700; font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.8px;
  padding: 8px 16px; border-radius: 30px; margin-bottom: 22px;
  box-shadow: 0 6px 16px rgba(16, 50, 80, 0.06);
}
.vt-hero-tag i { width: 7px; height: 7px; border-radius: 50%; background: var(--vt-sun); }
.vt-wordmark { width: min(470px, 92%); height: auto; margin-bottom: 20px; }
.vt-hero-tagline {
  color: var(--vt-ink); font-size: 16.5px; line-height: 1.8;
  max-width: 520px; margin-bottom: 26px;
}
.vt-stats { display: flex; flex-wrap: wrap; gap: 0; margin-bottom: 30px; }
.vt-stat { padding: 0 26px; position: relative; }
.vt-stat:first-child { padding-left: 0; }
.vt-stat + .vt-stat::before {
  content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 1px;
  background: var(--vt-sky-2);
}
.vt-stat strong {
  display: block; font-size: 34px; font-weight: 900; color: var(--vt-brush);
  line-height: 1; margin-bottom: 5px;
}
.vt-stat span { font-size: 13px; color: var(--vt-muted); }
.vt-hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* Ảnh KV đóng khung ảnh chụp */
.vt-hero-visual { position: relative; }
.vt-hero-photo { position: relative; max-width: 440px; margin: 0 auto; }
.vt-photo-back {
  position: absolute; inset: 0; z-index: 0;
  background: #fff; border: 1px solid var(--vt-cream-line); border-radius: 14px;
  transform: rotate(3.5deg); box-shadow: 0 16px 40px rgba(16, 50, 80, 0.12);
}
.vt-hero-photo .vt-frame { position: relative; z-index: 1; transform: rotate(-1.6deg); }
.vt-hero-mascot {
  position: absolute; right: -14px; bottom: -30px; width: 116px; height: auto; z-index: 4;
  filter: drop-shadow(0 10px 16px rgba(16, 50, 80, 0.22));
}
/* Doodle hero */
.vt-hero .d-plane { top: 40px; right: 8%; width: 78px; }
.vt-hero .d-arc   { top: 120px; left: -30px; width: 210px; opacity: 0.7; }
.vt-hero .d-star1 { top: 22px; left: 46%; width: 22px; }
.vt-hero .d-star2 { bottom: 60px; left: 6%; width: 16px; }
.vt-scroll-cue {
  position: relative; z-index: 2; text-align: center; margin-top: 22px;
  color: var(--vt-muted); font-size: 22px;
}
.vt-scroll-cue span { display: block; font-size: 12.5px; letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 6px; color: var(--vt-brush); }
.vt-scroll-cue svg { width: 22px; height: 22px; fill: var(--vt-brush); margin: 0 auto; animation: vt-bob 1.8s ease-in-out infinite; }
@keyframes vt-bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ==========================================================================
   SPLIT chung (Bối cảnh / TVC)
   ========================================================================== */
.vt-split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.vt-split.reverse .vt-split-media { order: 2; }
.vt-body .vt-kicker { justify-content: flex-start; }
.vt-body h2 { font-size: clamp(23px, 2.8vw, 31px); color: var(--vt-navy); font-weight: 800; margin-bottom: 16px; line-height: 1.25; }
.vt-body p { color: var(--vt-ink); margin-bottom: 15px; line-height: 1.8; font-size: 15.5px; }
.vt-body p:last-child { margin-bottom: 0; }
.vt-body strong { color: var(--vt-navy); }
.vt-quote {
  margin: 22px 0 4px; padding: 16px 20px; border-left: 4px solid var(--vt-sun);
  background: #fff; border-radius: 0 10px 10px 0; box-shadow: 0 8px 22px rgba(16,50,80,.06);
  color: var(--vt-navy); font-size: 17px; line-height: 1.6;
}
.vt-quote .vt-hand { font-size: 26px; color: var(--vt-brush); }
.vt-note-hand {
  display: inline-block; color: var(--vt-brush); font-size: 22px;
  transform: rotate(-4deg); margin-top: 16px;
}

/* ==========================================================================
   MỤC TIÊU — thẻ giá trị
   ========================================================================== */
.vt-goals { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.vt-goal {
  position: relative; background: #fff; border: 1px solid var(--vt-cream-line);
  border-radius: 16px; padding: 32px 24px 28px; box-shadow: 0 12px 30px rgba(16,50,80,.09);
  transition: transform .3s ease, box-shadow .3s ease; overflow: hidden;
}
.vt-goal::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: linear-gradient(90deg, var(--vt-brush), var(--vt-sun));
}
.vt-goal:hover { transform: translateY(-6px); box-shadow: 0 24px 48px rgba(16,50,80,.16); }
.vt-goal-num {
  position: absolute; top: 6px; right: 16px; font-size: 66px; line-height: 1;
  color: var(--vt-sky-2); font-weight: 700; font-family: 'SVN-Blog Script', cursive; z-index: 0; opacity: .8;
}
.vt-goal-ic {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center;
  width: 62px; height: 62px; border-radius: 18px; margin-bottom: 16px;
  background: linear-gradient(150deg, var(--vt-sky) 0%, #cfe4f8 100%);
  box-shadow: inset 0 0 0 1px rgba(16,95,173,.1);
}
.vt-goal-ic svg { width: 31px; height: 31px; fill: var(--vt-brush); }
.vt-goal h3 { position: relative; z-index: 1; font-size: 17px; font-weight: 800; color: var(--vt-navy); margin-bottom: 9px; }
.vt-goal p  { position: relative; z-index: 1; font-size: 14px; color: var(--vt-muted); line-height: 1.65; }

/* ==========================================================================
   Ý TƯỞNG CHỦ ĐẠO — bảng nhận diện
   ========================================================================== */
.vt-concept-kv { max-width: 940px; margin: 0 auto 32px; }
.vt-concept-kv .vt-frame { padding: 14px; }
.vt-concept-cap { text-align: center; margin-top: 14px; color: var(--vt-brush); font-size: 22px; }
.vt-identity { display: grid; grid-template-columns: 1.1fr 1fr; gap: 26px; align-items: stretch; }
.vt-idcard {
  background: #fff; border: 1px solid var(--vt-cream-line); border-radius: 16px;
  padding: 26px 26px 28px; box-shadow: 0 8px 24px rgba(16,50,80,.06);
}
.vt-idcard h4 {
  font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--vt-brush); margin-bottom: 6px;
}
.vt-idcard .vt-idsub { color: var(--vt-muted); font-size: 14px; margin-bottom: 20px; line-height: 1.6; }
.vt-swatches { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.vt-swatch i { display: block; height: 62px; border-radius: 10px; box-shadow: inset 0 0 0 1px rgba(0,0,0,.05); margin-bottom: 9px; }
.vt-swatch strong { display: block; font-size: 13px; color: var(--vt-navy); font-weight: 700; }
.vt-swatch small { display: block; font-size: 11px; color: var(--vt-muted); font-family: monospace; letter-spacing: .3px; }
.vt-motifs { display: flex; flex-wrap: wrap; gap: 12px; }
.vt-motif {
  flex: 1 1 calc(50% - 6px); display: flex; align-items: center; gap: 12px;
  background: var(--vt-paper); border: 1px solid var(--vt-cream-line); border-radius: 12px; padding: 12px 14px;
}
.vt-motif .vt-motif-ic { flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%; background: #fff;
  display: grid; place-items: center; box-shadow: inset 0 0 0 1px var(--vt-sky-2); }
.vt-motif svg { width: 24px; height: 24px; }
.vt-motif b { display: block; font-size: 13.5px; color: var(--vt-navy); }
.vt-motif span { font-size: 12px; color: var(--vt-muted); }

/* ==========================================================================
   LỘ TRÌNH — hành trình 6 giai đoạn (đường bay đứt nét)
   ========================================================================== */
.vt-track { position: relative; max-width: 900px; margin: 4px auto 0; }
.vt-track::before {
  content: ''; position: absolute; left: 29px; top: 8px; bottom: 8px;
  border-left: 2px dashed var(--vt-doodle);
}
.vt-track .vt-track-plane { position: absolute; left: 29px; top: -16px; transform: translateX(-50%); width: 38px; z-index: 3; }
.vt-phase { position: relative; display: grid; grid-template-columns: 58px 1fr; gap: 24px; align-items: start; margin-bottom: 16px; }
.vt-phase:last-child { margin-bottom: 0; }
.vt-phase-mark {
  grid-column: 1; z-index: 2;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--vt-brush); color: #fff; font-weight: 900; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 18px rgba(16, 95, 173, 0.35); border: 4px solid #fff;
}
.vt-phase-card {
  grid-column: 2; background: #fff; border: 1px solid var(--vt-cream-line);
  border-left: 4px solid var(--vt-brush); border-radius: 14px;
  padding: 20px 24px; box-shadow: 0 10px 26px rgba(16, 50, 80, 0.08); position: relative;
}
.vt-phase:nth-child(even) .vt-phase-card { border-left-color: var(--vt-sun); }
.vt-phase-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; justify-content: space-between; margin-bottom: 8px; }
.vt-phase-head h3 { font-size: 16.5px; font-weight: 800; color: var(--vt-navy); }
.vt-phase-days { font-size: 12px; font-weight: 700; color: var(--vt-brush); background: var(--vt-sky); padding: 4px 12px; border-radius: 20px; white-space: nowrap; }
.vt-phase-card p { color: var(--vt-muted); font-size: 14px; line-height: 1.7; margin-bottom: 12px; }
.vt-phase-card p:last-child { margin-bottom: 0; }
.vt-phase-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.vt-phase-tags span { font-size: 11.5px; font-weight: 600; color: var(--vt-brush-dk); background: var(--vt-sky); border: 1px solid var(--vt-sky-2); padding: 4px 10px; border-radius: 6px; }

/* ==========================================================================
   CUỘC THI — bảng nổi bật
   ========================================================================== */
.vt-contest {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--vt-brush) 0%, var(--vt-brush-dk) 55%, var(--vt-navy) 100%);
  border-radius: 22px; padding: 50px clamp(24px, 4vw, 56px); color: #fff;
  box-shadow: 0 30px 60px rgba(12, 74, 135, 0.28);
}
.vt-contest::before, .vt-contest::after {
  content: ''; position: absolute; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
}
.vt-contest::before { width: 320px; height: 320px; top: -120px; right: -80px; }
.vt-contest::after  { width: 260px; height: 260px; bottom: -120px; left: -70px; }
.vt-contest-inner { position: relative; z-index: 2; }
.vt-contest-head { text-align: center; max-width: 700px; margin: 0 auto 34px; }
.vt-contest-head .vt-kicker { color: var(--vt-sun); justify-content: center; }
.vt-contest-head h2 { color: #fff; font-size: clamp(24px, 3vw, 33px); font-weight: 800; margin-bottom: 12px; }
.vt-contest-head p { color: rgba(255,255,255,0.9); line-height: 1.75; }
.vt-contest-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.vt-cbox { background: rgba(255,255,255,0.09); border: 1px solid rgba(255,255,255,0.16); border-radius: 16px; padding: 26px; }
.vt-cbox h4 { color: var(--vt-sun); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 16px; }
.vt-topics li { display: flex; align-items: center; gap: 13px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.12); font-size: 15px; font-weight: 600; }
.vt-topics li:last-child { border-bottom: none; padding-bottom: 0; }
.vt-topics li b { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--vt-sun); color: var(--vt-navy); font-size: 12px; font-weight: 900; display: flex; align-items: center; justify-content: center; }
.vt-cinfo { display: flex; flex-direction: column; gap: 16px; }
.vt-ci-row h4 { margin-bottom: 6px; }
.vt-ci-row p { color: #fff; font-size: 15px; font-weight: 600; }
.vt-prize {
  margin-top: auto; background: rgba(251, 196, 17, 0.14); border: 1px solid rgba(251, 196, 17, 0.4);
  border-radius: 14px; padding: 18px 20px; display: flex; flex-direction: column; gap: 2px;
}
.vt-prize .cp-label { color: var(--vt-sun); font-size: 12px; text-transform: uppercase; letter-spacing: .6px; font-weight: 700; }
.vt-prize .cp-value { font-size: 30px; font-weight: 900; color: #fff; line-height: 1.1; }
.vt-prize .cp-note { font-size: 12.5px; color: rgba(255,255,255,0.78); }

/* ==========================================================================
   ẤN PHẨM — masonry giữ nguyên tỉ lệ gốc (KHÔNG cắt)
   ========================================================================== */
.vt-masonry { columns: 3; column-gap: 20px; }
.vt-masonry .gallery-item {
  break-inside: avoid; margin: 0 0 20px; display: block; cursor: zoom-in;
  background: #fff; border: 1px solid var(--vt-cream-line); border-radius: 12px;
  overflow: hidden; box-shadow: 0 8px 22px rgba(16, 50, 80, 0.07);
  transition: transform .3s ease, box-shadow .3s ease;
}
.vt-masonry .gallery-item:hover { transform: translateY(-5px); box-shadow: 0 22px 44px rgba(16, 50, 80, 0.16); }
.vt-masonry .gallery-item img { width: 100%; height: auto; display: block; border-radius: 0; }
/* vô hiệu hoá phóng-to-cắt của .gallery-item mặc định để không xén ảnh */
.vt-masonry .gallery-item:hover img { transform: none; }
.vt-masonry .gallery-item::after { display: none; }
.vt-masonry figcaption {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 15px; border-top: 1px dashed var(--vt-cream-line);
}
.vt-masonry figcaption b { font-size: 13px; font-weight: 700; color: var(--vt-navy); }
.vt-masonry figcaption span { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; color: var(--vt-brush); background: var(--vt-sky); padding: 3px 9px; border-radius: 20px; white-space: nowrap; }
.vt-gallery-note { text-align: center; margin-top: 8px; color: var(--vt-muted); font-size: 14px; }

/* ==========================================================================
   TVC
   ========================================================================== */
.vt-tvc-frame { position: relative; display: block; border-radius: 16px; overflow: hidden; box-shadow: 0 24px 50px rgba(16, 50, 80, 0.2); }
.vt-tvc-frame img { width: 100%; height: auto; display: block; }
.vt-tvc-frame::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,58,107,0) 55%, rgba(10,58,107,0.35)); }
.vt-tvc-play {
  position: absolute; inset: 0; margin: auto; width: 78px; height: 78px; border-radius: 50%;
  background: rgba(255,255,255,0.94); display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(0,0,0,0.32); transition: transform .3s ease, background .3s ease; z-index: 2;
}
.vt-tvc-play svg { width: 30px; height: 30px; fill: var(--vt-brush); margin-left: 4px; }
.vt-tvc-frame:hover .vt-tvc-play { transform: scale(1.08); background: #fff; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 992px) {
  .vt-sec { padding: 60px 0; }
  .vt-hero { padding: 44px 0 70px; }
  .vt-hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .vt-hero-tagline { margin-left: auto; margin-right: auto; }
  .vt-stats { justify-content: center; }
  .vt-body .vt-kicker { justify-content: center; }
  .vt-hero-cta { justify-content: center; }
  .vt-wordmark { margin-left: auto; margin-right: auto; }
  .vt-hero .d-arc { display: none; }
  .vt-split { grid-template-columns: 1fr; gap: 34px; }
  .vt-split.reverse .vt-split-media { order: 0; }
  .vt-body { text-align: center; }
  .vt-quote { text-align: left; }
  .vt-goals { grid-template-columns: repeat(2, 1fr); }
  .vt-identity { grid-template-columns: 1fr; }
  .vt-contest-grid { grid-template-columns: 1fr; }
  .vt-masonry { columns: 2; }

  /* Timeline về 1 cột, đường bay bên trái */
  .vt-track { max-width: 620px; }
  .vt-track::before { left: 25px; }
  .vt-track .vt-track-plane { left: 25px; }
  .vt-phase { grid-template-columns: 50px 1fr; gap: 16px; align-items: start; }
  .vt-phase-mark { grid-column: 1; width: 50px; height: 50px; font-size: 16px; }
  .vt-phase:nth-child(odd) .vt-phase-card,
  .vt-phase:nth-child(even) .vt-phase-card { grid-column: 2; }
  .vt-phase-card::after,
  .vt-phase:nth-child(odd) .vt-phase-card::after,
  .vt-phase:nth-child(even) .vt-phase-card::after { left: -8px; right: auto; border-right: none; border-top: none; border-left: 1px solid var(--vt-cream-line); border-bottom: 1px solid var(--vt-cream-line); }
}

@media (max-width: 600px) {
  .vt-sec { padding: 50px 0; }
  .vt-goals { grid-template-columns: 1fr; }
  .vt-masonry { columns: 1; }
  .vt-swatches { grid-template-columns: repeat(2, 1fr); }
  .vt-motif { flex: 1 1 100%; }
  .vt-stat { padding: 0 18px; }
  .vt-stat strong { font-size: 28px; }
  .vt-hero-photo .vt-frame, .vt-tilt, .vt-tilt-r { transform: none; }
  .vt-contest { padding: 36px 22px; }
  .vt-prize .cp-value { font-size: 26px; }
}

/* ==========================================================================
   PHIÊN BẢN KHÔNG ẢNH — hero chữ, danh mục ấn phẩm, TVC card
   ========================================================================== */
/* Hero thuần chữ (tiêu đề viết tay thay wordmark) */
.vt-hero--solo { padding: 54px 0 60px; }
.vt-hero-solo { max-width: 880px; margin: 0 auto; text-align: center; }
.vt-hero-solo .vt-hero-tag { margin-bottom: 20px; }
.vt-hero-solo .vt-hero-tagline { margin-left: auto; margin-right: auto; }
.vt-hero-solo .vt-stats { justify-content: center; }
.vt-hero-solo .vt-hero-cta { justify-content: center; }
.vt-title {
  font-family: 'SVN-Blog Script', cursive; font-weight: 700; color: var(--vt-brush);
  font-size: clamp(56px, 8vw, 104px); line-height: 0.9; margin: 6px 0 2px; letter-spacing: 1px;
}
.vt-title-sub {
  display: inline-block; font-family: 'Montserrat', 'Segoe UI', sans-serif; font-weight: 700;
  font-size: clamp(18px, 2.3vw, 26px); color: var(--vt-navy); margin-bottom: 24px; letter-spacing: 0.3px;
}
.vt-title-sub .vt-underline::after { bottom: -2px; height: 8px; }

/* Bối cảnh thuần chữ */
.vt-why-solo { max-width: 760px; margin: 0 auto; text-align: center; }
.vt-why-solo .vt-kicker { justify-content: center; }
.vt-why-solo h2 { font-size: clamp(24px, 3vw, 33px); color: var(--vt-navy); font-weight: 800; margin-bottom: 16px; }
.vt-why-solo p { color: var(--vt-ink); line-height: 1.85; font-size: 16px; margin-bottom: 6px; }
.vt-quote-center {
  margin: 24px auto; max-width: 600px; padding: 20px 28px;
  background: #fff; border: 1px dashed var(--vt-cream-line); border-radius: 16px;
  box-shadow: 0 12px 30px rgba(16, 50, 80, 0.06);
}
.vt-quote-center .vt-hand { font-size: 30px; color: var(--vt-brush); line-height: 1.4; }

/* Danh mục ấn phẩm (thẻ chữ + icon, không ảnh) */
.vt-deliverables { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.vt-deliver {
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
  background: #fff; border: 1px solid var(--vt-cream-line); border-radius: 14px;
  padding: 22px 20px; box-shadow: 0 8px 22px rgba(16, 50, 80, 0.06);
  transition: transform .3s ease, box-shadow .3s ease;
}
.vt-deliver:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(16, 50, 80, 0.14); }
.vt-deliver-ic {
  width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--vt-sky), #cfe4f8);
  box-shadow: inset 0 0 0 1px rgba(16, 95, 173, 0.1);
}
.vt-deliver-ic svg { width: 25px; height: 25px; fill: var(--vt-brush); }
.vt-deliver b { font-size: 15px; color: var(--vt-navy); font-weight: 800; line-height: 1.3; }
.vt-deliver-type { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; color: var(--vt-brush); background: var(--vt-sky); padding: 4px 11px; border-radius: 20px; }

/* TVC card (không ảnh) */
.vt-tvc-card {
  display: grid; grid-template-columns: auto 1fr; gap: 30px; align-items: center;
  max-width: 900px; margin: 0 auto;
  background: linear-gradient(135deg, #fff 0%, var(--vt-sky) 100%);
  border: 1px solid var(--vt-cream-line); border-radius: 22px; padding: 38px 42px;
  box-shadow: 0 16px 40px rgba(16, 50, 80, 0.08);
}
.vt-tvc-icon { width: 92px; height: 92px; border-radius: 50%; background: var(--vt-brush); display: grid; place-items: center; box-shadow: 0 12px 28px rgba(16, 95, 173, 0.35); }
.vt-tvc-icon svg { width: 38px; height: 38px; fill: #fff; margin-left: 4px; }
.vt-tvc-body .vt-kicker { justify-content: flex-start; }
.vt-tvc-body h2 { font-size: clamp(22px, 2.6vw, 30px); color: var(--vt-navy); font-weight: 800; margin-bottom: 12px; line-height: 1.25; }
.vt-tvc-body p { color: var(--vt-ink); line-height: 1.8; font-size: 15.5px; margin-bottom: 20px; }

@media (max-width: 860px) {
  .vt-deliverables { grid-template-columns: repeat(2, 1fr); }
  .vt-tvc-card { grid-template-columns: 1fr; text-align: center; gap: 20px; padding: 32px 26px; }
  .vt-tvc-icon { margin: 0 auto; }
  .vt-tvc-body .vt-kicker { justify-content: center; }
}
@media (max-width: 520px) {
  .vt-deliverables { grid-template-columns: 1fr; }
  .vt-title { font-size: clamp(50px, 16vw, 72px); }
}