/**
 * Pipii — Founding Access Homepage
 * Design: Luxury Minimalism · Private Club Energy · Premium SaaS Precision
 * Font stack: Inter (UI) + Instrument Serif (editorial accent)
 *
 * Reference energy: Soho House, Apple premium, Linear, Stripe Atlas (restrained)
 * Forbidden: Upwork, Fiverr, bounty boards, airdrop pages, info-bomb landing pages
 */

/* ==========================================================================
   1. SHELL — Page-level container
   ========================================================================== */

.pipii-access-shell {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: clamp(64px, 10vw, 120px);
    padding: 32px 24px 80px;
}

.gr-home-page main.main-content.container {
    max-width: 100%;
    padding-left: 0;
    padding-right: 0;
}

/* ==========================================================================
   2. HERO — Founding Access Hero
      Whitespace = Premium. Massive top padding, minimal text.
   ========================================================================== */

.pipii-founding-hero {
    position: relative;
    padding: clamp(64px, 8vw, 100px) 0 clamp(40px, 5vw, 64px);
    text-align: center;
    overflow: hidden;
}

.pipii-founding-hero__inner {
    position: relative;
    z-index: 2;
    max-width: 680px;
    margin: 0 auto;
}

/* ── Eyebrow ── 极小，克制 ── */
.pipii-founding-hero__eyebrow {
    display: inline-block;
    margin: 0 0 28px;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
}

/* ── Hero Title ── 极大，轻盈 ── */
.pipii-founding-hero__title {
    margin: 0 0 24px;
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 350;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: #ececf1;
}

.pipii-founding-hero__title-line {
    display: block;
}

.pipii-founding-hero__title-line--accent {
    font-weight: 400;
    background: linear-gradient(135deg, #ececf1 0%, #a0a0b0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ── Subheadline ── 极简 ── */
.pipii-founding-hero__sub {
    margin: 0 0 48px;
    font-size: clamp(1rem, 2vw, 1.15rem);
    font-weight: 350;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.45);
    letter-spacing: 0.02em;
}

.pipii-founding-hero__sub-em {
    color: rgba(255, 255, 255, 0.55);
}

/* ── CTA Row ── 仅两个按钮 ── */
.pipii-founding-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}

/* ── Founding Buttons ── 高级、克制 ── */
.pipii-founding-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-decoration: none;
    transition:
        all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    border: none;
    line-height: 1.2;
}

.pipii-founding-btn--primary {
    background: rgba(255, 255, 255, 0.06);
    color: #ececf1;
    border: 1px solid rgba(255, 255, 255, 0.10);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.pipii-founding-btn--primary:hover {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.20);
    transform: translateY(-1px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.pipii-founding-btn--ghost {
    background: transparent;
    color: rgba(255, 255, 255, 0.50);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.pipii-founding-btn--ghost:hover {
    color: rgba(255, 255, 255, 0.75);
    border-color: rgba(255, 255, 255, 0.15);
}

/* ── Hero glow ── 非常克制的环境光 ── */
.pipii-founding-hero__glow {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 80%;
    background:
        radial-gradient(ellipse 50% 40% at 50% 30%, rgba(95, 255, 212, 0.03), transparent 60%),
        radial-gradient(ellipse 40% 30% at 30% 50%, rgba(147, 197, 253, 0.02), transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ==========================================================================
   3. IDENTITY STRIP — "为真正拥有影响力的人而建"
      三栏极简身份卡片
   ========================================================================== */

.pipii-identity-strip {
    text-align: center;
}

.pipii-identity-strip__heading {
    margin: 0 0 48px;
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 350;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #ececf1;
}

.pipii-identity-strip__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

/* ── Identity Card ── 极简、留白充足 ── */
.pipii-identity-card {
    padding: 32px 24px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    background: rgba(255, 255, 255, 0.01);
    text-align: center;
    transition:
        border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        background 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pipii-identity-card:hover {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
}

.pipii-identity-card__tag {
    margin: 0 0 12px;
    font-size: 0.60rem;
    font-weight: 500;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.25);
}

.pipii-identity-card__title {
    margin: 0 0 10px;
    font-size: 1.4rem;
    font-weight: 380;
    letter-spacing: -0.02em;
    color: #ececf1;
}

.pipii-identity-card__desc {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 350;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.40);
    max-width: 30ch;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   4. VALUE STRIP — 品牌购买结果，创作者沉淀身份
      极简链式展示
   ========================================================================== */

.pipii-value-strip {
    text-align: center;
    padding: 0 0;
}

.pipii-value-strip__heading {
    margin: 0 0 40px;
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 350;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #ececf1;
}

.pipii-value-strip__chain {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px 8px;
    margin-bottom: 20px;
}

.pipii-value-link {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    border-radius: 9999px;
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.015);
    transition:
        border-color 0.3s ease,
        color 0.3s ease;
}

.pipii-value-link:hover {
    border-color: rgba(255, 255, 255, 0.14);
    color: rgba(255, 255, 255, 0.75);
}

.pipii-value-link--accent {
    color: rgba(95, 255, 212, 0.70);
    border-color: rgba(95, 255, 212, 0.12);
}

.pipii-value-link--accent:hover {
    color: rgba(95, 255, 212, 0.95);
    border-color: rgba(95, 255, 212, 0.25);
}

.pipii-value-arrow {
    font-size: 0.90rem;
    color: rgba(255, 255, 255, 0.15);
    font-weight: 200;
}

.pipii-value-strip__note {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 350;
    color: rgba(255, 255, 255, 0.20);
    letter-spacing: 0.04em;
}

/* ==========================================================================
   5. PASSPORT SECTION — 不只是加入
   ========================================================================== */

.pipii-passport-section {
    text-align: center;
}

.pipii-passport-section__heading {
    margin: 0 0 48px;
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 350;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #ececf1;
}

.pipii-passport-section__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

/* ── Passport Card ── 比 identity card 更深的质感 ── */
.pipii-passport-card {
    padding: 36px 24px 32px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    background: rgba(255, 255, 255, 0.01);
    text-align: center;
    transition:
        border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        background 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pipii-passport-card:hover {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
}

/* ── Icon ── 极简几何符号 ── */
.pipii-passport-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.015);
}

.pipii-passport-card__icon-inner {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.25);
    font-family: "Instrument Serif", Georgia, serif;
    line-height: 1;
}

.pipii-passport-card__title {
    margin: 0 0 10px;
    font-size: 1.15rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: #ececf1;
}

.pipii-passport-card__desc {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 350;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.40);
    max-width: 30ch;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   6. INVITE LAYER — 被邀请进入
   ========================================================================== */

.pipii-invite-layer {
    text-align: center;
    padding: 0;
}

.pipii-invite-layer__inner {
    max-width: 520px;
    margin: 0 auto;
    padding: 48px 32px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    background: rgba(255, 255, 255, 0.01);
}

.pipii-invite-layer__heading {
    margin: 0 0 16px;
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 350;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #ececf1;
}

.pipii-invite-layer__desc {
    margin: 0 0 36px;
    font-size: 0.88rem;
    font-weight: 350;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.40);
}

.pipii-invite-layer__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

/* ==========================================================================
   7. RESPONSIVE
   ========================================================================== */

@media (max-width: 680px) {
    .pipii-access-shell {
        padding: 20px 16px 60px;
        gap: 48px;
    }

    .pipii-founding-hero {
        padding: 40px 0 32px;
    }

    .pipii-founding-hero__title {
        font-size: 2.2rem;
    }

    .pipii-founding-hero__sub {
        margin-bottom: 36px;
    }

    .pipii-founding-btn {
        padding: 12px 24px;
        font-size: 0.82rem;
    }

    .pipii-identity-card,
    .pipii-passport-card {
        padding: 24px 20px;
    }

    .pipii-value-strip__chain {
        gap: 8px 6px;
    }

    .pipii-value-link {
        padding: 8px 18px;
        font-size: 0.78rem;
    }

    .pipii-invite-layer__inner {
        padding: 36px 20px;
    }
}

/* ==========================================================================
   8. REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .pipii-identity-card,
    .pipii-passport-card {
        transition: none;
    }
    .pipii-identity-card:hover,
    .pipii-passport-card:hover {
        transform: none;
    }
}