/* ═══════════════════════════════════════════════════════════
   FOUNDER INTRODUCTION MODAL — Cinematic Editorial Component
   Non-destructive addition. Zero impact on existing styles.
   ═══════════════════════════════════════════════════════════ */

/* ===== OVERLAY BACKDROP ===== */
.founder-intro-overlay {
    position: fixed;
    inset: 0;
    z-index: 9997;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                visibility 0s linear 0.7s;
}
.founder-intro-overlay.fi-visible {
    pointer-events: auto;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                visibility 0s linear 0s;
}

/* ===== BACKDROP LAYER ===== */
.fi-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* ===== CLOSE BUTTON ===== */
.fi-close {
    position: absolute;
    top: 28px;
    right: 32px;
    z-index: 10;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.4);
    font-family: 'Inter', sans-serif;
    font-size: 1.4rem;
    font-weight: 200;
    line-height: 1;
    padding: 8px;
    cursor: none;
    transition: color 0.3s ease, opacity 0.3s ease;
}
.fi-close:hover {
    color: rgba(255, 255, 255, 0.9);
}

/* ===== CONTENT WRAPPER ===== */
.fi-content {
    position: relative;
    z-index: 5;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
}

/* ===== EDITORIAL CARD ===== */
.fi-card {
    max-width: 800px;
    width: 100%;
    text-align: center;
    padding: 80px 60px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.15s,
                transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.15s;
}
.fi-visible .fi-card {
    opacity: 1;
    transform: translateY(0);
}
.fi-video-active .fi-card {
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== CARD TYPOGRAPHY ===== */

/* Small label */
.fi-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
    margin-bottom: 32px;
    display: block;
}

/* Large heading */
.fi-heading {
    font-family: 'General Sans', sans-serif;
    font-size: 2.8rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin: 0 0 28px 0;
    line-height: 1.1;
}

/* Supporting copy */
.fi-copy {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.55);
    max-width: 520px;
    margin: 0 auto 56px auto;
}

/* ===== PRIMARY ACTION — WATCH INTRODUCTION ===== */
.fi-play-btn {
    display: inline-block;
    background: none;
    border: none;
    font-family: 'Inter', sans-serif;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    padding: 12px 4px 6px 4px;
    position: relative;
    cursor: none;
    transition: color 0.3s ease,
                transform 0.35s cubic-bezier(0.25, 1, 0.5, 1),
                opacity 0.3s ease;
}
.fi-play-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.85);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
.fi-play-btn:hover {
    color: #ffffff;
    transform: translateY(-3px);
}
.fi-play-btn:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ===== SECONDARY ACTION — CONTINUE TO WEBSITE ===== */
.fi-skip-btn {
    display: block;
    background: none;
    border: none;
    font-family: 'Inter', sans-serif;
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.35);
    margin: 28px auto 0 auto;
    padding: 8px 4px;
    cursor: none;
    transition: color 0.3s ease;
}
.fi-skip-btn:hover {
    color: rgba(255, 255, 255, 0.65);
}

/* ===== VIDEO CONTAINER ===== */
.fi-video-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 1100px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}
.fi-video-active .fi-video-wrap {
    opacity: 1;
    pointer-events: auto;
}

/* 16:9 responsive container */
.fi-video-frame {
    position: relative;
    padding-top: 56.25%;
    background: #000;
}
.fi-video-frame iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ===== CONTINUE EXPLORING (Post-video) ===== */
.fi-continue-wrap {
    text-align: center;
    margin-top: 32px;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    pointer-events: none;
}
.fi-continue-wrap.fi-continue-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.fi-continue-btn {
    display: inline-block;
    background: none;
    border: none;
    font-family: 'Inter', sans-serif;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    padding: 10px 4px 5px 4px;
    position: relative;
    cursor: none;
    transition: color 0.3s ease,
                transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}
.fi-continue-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.6);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
.fi-continue-btn:hover {
    color: #ffffff;
    transform: translateY(-2px);
}
.fi-continue-btn:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .fi-card {
        padding: 48px 28px;
    }
    .fi-heading {
        font-size: 2rem;
    }
    .fi-copy {
        font-size: 0.92rem;
        margin-bottom: 40px;
    }
    .fi-close {
        top: 16px;
        right: 20px;
    }
    .fi-video-wrap {
        width: 95%;
    }
}

@media (max-width: 480px) {
    .fi-card {
        padding: 36px 20px;
    }
    .fi-heading {
        font-size: 1.6rem;
        margin-bottom: 20px;
    }
    .fi-label {
        font-size: 0.65rem;
        margin-bottom: 24px;
    }
    .fi-copy {
        font-size: 0.85rem;
        line-height: 1.6;
    }
}