/* proof */
.proof-promise {
      position: relative;
      isolation: isolate;
      overflow: hidden;
      padding: clamp(54px, 7vw, 92px) clamp(22px, 5vw, 72px);
      background: var(--accent);
      color: #fff;
      border: 3px solid var(--dark);
      box-shadow: 12px 12px 0 var(--accent-2);
      text-align: center;
    }

    .proof-promise::before {
      content: "";
      position: absolute;
      inset: -45% auto -45% -24%;
      z-index: -1;
      width: 26%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.24), transparent);
      transform: skewX(-18deg) translateX(-180%);
    }

    .proof-promise::after {
      content: none;
    }

    .proof-promise.is-visible::before {
      animation: promise-shine 1100ms 1500ms cubic-bezier(.2, .7, .2, 1) both;
    }

    .proof-promise .eyebrow {
      margin-bottom: 18px;
      color: #ffe09a;
      opacity: 0;
      transform: translateY(14px);
    }

    .proof-promise.is-visible .eyebrow {
      animation: promise-rise 480ms 80ms cubic-bezier(.2, .8, .2, 1) forwards;
    }

    .proof-promise h2 {
      margin: 0;
      color: #fff;
      font-weight: 900;
      letter-spacing: -0.045em;
    }

    .promise-line {
      display: block;
      opacity: 0;
      transform: translateY(30px) scale(0.96);
    }

    .promise-lead {
      color: #f8d14b;
      font-size: clamp(48px, 7.2vw, 100px);
      line-height: 1.02;
      white-space: nowrap;
      text-shadow: 4px 4px 0 rgba(23, 56, 42, 0.72);
      opacity: 1;
      transform: none;
    }

    .promise-lead .bounce-char {
      display: inline-block;
      opacity: 0;
      transform: translateY(-72px) scale(0.82);
      transform-origin: center bottom;
    }

    .promise-detail {
      margin-top: clamp(22px, 3vw, 36px);
      font-size: clamp(24px, 2.85vw, 42px);
      line-height: 1.28;
      white-space: nowrap;
    }

    .promise-detail em {
      display: inline-block;
      position: relative;
      margin-inline: 0.08em;
      color: #fff;
      font-style: normal;
      font-size: 1.22em;
      text-decoration: underline;
      text-decoration-color: #f8d14b;
      text-decoration-thickness: 0.16em;
      text-underline-offset: 0.12em;
    }

    .proof-promise.is-visible .promise-lead .bounce-char {
      animation: promise-char-bounce 760ms cubic-bezier(.18, .86, .28, 1.18) forwards;
      animation-delay: calc(120ms + (var(--i) * 65ms));
    }

    .proof-promise.is-visible .promise-detail {
      animation: promise-rise 580ms 1250ms cubic-bezier(.2, .8, .2, 1) forwards;
    }

    .proof-promise.is-visible .promise-detail em {
      animation: promise-number 500ms 850ms cubic-bezier(.16, 1.4, .36, 1) both;
    }

    @keyframes promise-rise {
      to { opacity: 1; transform: translateY(0) scale(1); }
    }

    @keyframes promise-char-bounce {
      0% { opacity: 0; transform: translateY(-72px) scale(0.82); }
      48% { opacity: 1; transform: translateY(12px) scale(1.08, 0.94); }
      68% { opacity: 1; transform: translateY(-10px) scale(0.97, 1.05); }
      84% { opacity: 1; transform: translateY(4px) scale(1.02, 0.98); }
      100% { opacity: 1; transform: translateY(0) scale(1); }
    }

    @keyframes promise-number {
      0% { transform: scale(0.82) rotate(-2deg); }
      70% { transform: scale(1.12) rotate(1deg); }
      100% { transform: scale(1) rotate(0); }
    }

    @keyframes promise-shine {
      from { transform: skewX(-18deg) translateX(-180%); }
      to { transform: skewX(-18deg) translateX(620%); }
    }

    .proof-benefits {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: clamp(12px, 2vw, 24px);
      margin-top: clamp(56px, 7vw, 88px);
    }

    .proof-benefit {
      min-width: 0;
      opacity: 0;
      transform: translateY(42px);
    }

    .proof-benefit-copy {
      min-height: 148px;
      padding: 0 6px 11px;
      border-bottom: 3px solid var(--dark);
    }

    .proof-benefit-index {
      display: block;
      margin-bottom: 12px;
      color: var(--accent);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: 0.12em;
    }

    .proof-benefit h3 {
      margin: 0;
      color: var(--dark);
      font-size: clamp(28px, 2.85vw, 44px);
      line-height: 1.13;
      letter-spacing: -0.035em;
      text-wrap: balance;
    }

    .proof-benefit-media {
      position: relative;
      overflow: hidden;
      margin-top: 8px;
      aspect-ratio: 0.76;
      background: #d9d4ca;
    }

    .proof-benefit-media::before {
      content: "";
      position: absolute;
      inset: 36% 0 0;
      z-index: 1;
      background: linear-gradient(
        180deg,
        transparent 0%,
        rgba(0, 0, 0, 0.22) 28%,
        rgba(0, 0, 0, 0.86) 100%
      );
      pointer-events: none;
    }

    .proof-benefit-media::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: 3;
      border: 1px solid rgba(23, 56, 42, 0.18);
      pointer-events: none;
    }

    .proof-benefit-overlay {
      position: absolute;
      left: clamp(18px, 2.2vw, 30px);
      right: clamp(18px, 2.2vw, 30px);
      bottom: clamp(20px, 2.6vw, 38px);
      z-index: 2;
      margin: 0;
      color: #fff;
      font-size: clamp(30px, 2.8vw, 42px);
      font-weight: 900;
      line-height: 1.16;
      letter-spacing: -0.035em;
      text-shadow: 0 3px 16px rgba(0, 0, 0, 0.62);
      opacity: 0;
      transform: translateY(16px);
    }

    .proof-benefit-overlay strong {
      color: #f8d14b;
      font: inherit;
    }

    .proof-benefit img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 650ms cubic-bezier(.2, .72, .2, 1), filter 650ms ease;
    }

    .proof-benefit:hover img {
      transform: scale(1.035);
      filter: saturate(1.08) contrast(1.03);
    }

    .proof-benefits.is-visible .proof-benefit {
      animation: benefit-rise 680ms cubic-bezier(.2, .8, .2, 1) forwards;
    }

    .proof-benefits.is-visible .proof-benefit:nth-child(2) { animation-delay: 130ms; }

    .proof-benefits.is-visible .proof-benefit:nth-child(3) { animation-delay: 260ms; }

    .proof-benefits.is-visible .proof-benefit-overlay {
      animation: benefit-copy-rise 520ms 360ms cubic-bezier(.2, .8, .2, 1) forwards;
    }

    .proof-benefits.is-visible .proof-benefit:nth-child(2) .proof-benefit-overlay { animation-delay: 490ms; }

    .proof-benefits.is-visible .proof-benefit:nth-child(3) .proof-benefit-overlay { animation-delay: 620ms; }

    @keyframes benefit-rise {
      to { opacity: 1; transform: translateY(0); }
    }

    @keyframes benefit-copy-rise {
      to { opacity: 1; transform: translateY(0); }
    }