/* =================================
   ABOUT PAGE
================================= */

.about-hero {
    position: relative;

    padding-top: clamp(4.5rem, 7vw, 6.5rem);
    padding-bottom: var(--space-2xl);
}


/* =================================
   BACK TO HOME
================================= */

.about-back-home {
    position: absolute;

    top: 1.5rem;
    right: 0;

    display: inline-flex;
    align-items: center;

    gap: 0.45rem;

    color: var(--color-text-muted);

    font-size: 0.7rem;
    font-weight: var(--weight-medium);

    letter-spacing: 0.02em;

    text-decoration: none;

    transition:
        color var(--transition-normal),
        transform var(--transition-normal);
}

.about-back-home span {
    color: var(--color-primary);

    transition:
        transform var(--transition-normal);
}

.about-back-home:hover {
    color: var(--color-text);

    transform: translateX(-2px);
}

.about-back-home:hover span {
    transform: translateX(-3px);
}


/* =================================
   HERO
================================= */

.about-hero-grid {
    display: grid;

    grid-template-columns: 1.3fr 0.7fr;

    gap: var(--space-3xl);

    align-items: end;
}

.about-hero-content h1 {
    max-width: 850px;

    margin-top: var(--space-sm);

    font-size: clamp(
        3.25rem,
        6.5vw,
        6.5rem
    );

    line-height: 0.94;

    letter-spacing: -0.065em;
}

.about-hero-lead {
    max-width: 620px;

    margin-top: var(--space-lg);

    color: var(--color-text-secondary);

    font-size: clamp(
        1.05rem,
        1.8vw,
        1.3rem
    );

    line-height: 1.6;
}


/* =================================
   HERO META
================================= */

.about-hero-meta {
    max-width: 360px;

    padding-left: var(--space-lg);

    border-left: 1px solid var(--color-border);
}

.about-identity {
    display: flex;
    align-items: center;

    gap: 0.9rem;
}

.identity-mark {
    width: 42px;
    height: 42px;

    display: grid;
    place-items: center;

    border: 1px solid var(--color-border);

    border-radius: 50%;

    color: var(--color-primary);

    font-size: 0.95rem;
    font-weight: var(--weight-bold);
}

.about-identity strong {
    display: block;

    color: var(--color-text);

    font-size: 0.72rem;

    letter-spacing: 0.12em;
}

.about-identity div span {
    display: block;

    margin-top: 0.15rem;

    color: var(--color-text-muted);

    font-size: 0.63rem;
}

.about-hero-meta > p {
    margin-top: var(--space-md);

    color: var(--color-text-muted);

    font-size: var(--text-sm);

    line-height: 1.65;
}


/* =================================
   SHARED SECTION STRUCTURE
================================= */

.about-story,
.about-focus,
.about-philosophy,
.about-method,
.about-standard,
.about-final-cta {
    border-top: 1px solid var(--color-border-light);
}


/* =================================
   STORY
================================= */

.about-story-grid {
    display: grid;

    grid-template-columns: 0.8fr 1.2fr;

    gap: var(--space-3xl);
}

.section-intro h2 {
    max-width: 500px;

    margin-top: var(--space-sm);

    font-size: clamp(
        2.2rem,
        3.7vw,
        3.7rem
    );

    line-height: 1.02;

    letter-spacing: -0.045em;
}

.about-story-content {
    max-width: 680px;
}

.about-story-content p {
    margin-bottom: var(--space-sm);

    color: var(--color-text-secondary);

    font-size: var(--text-md);

    line-height: 1.7;
}

.about-story-content .story-large {
    color: var(--color-text);

    font-size: clamp(
        1.4rem,
        2.3vw,
        1.9rem
    );

    line-height: 1.35;

    letter-spacing: -0.025em;
}


/* =================================
   JOURNEY
================================= */

.journey-equation {
    display: flex;
    align-items: center;

    flex-wrap: wrap;

    gap: 0.65rem;

    margin-top: var(--space-lg);

    padding-top: var(--space-md);

    border-top: 1px solid var(--color-border-light);
}

.journey-equation span {
    color: var(--color-text-muted);

    font-size: 0.62rem;
    font-weight: var(--weight-bold);

    letter-spacing: 0.08em;
}

.journey-equation span:nth-child(even) {
    color: var(--color-primary);

    font-size: 0.75rem;
}


/* =================================
   FOCUS
================================= */

.section-header {
    max-width: 760px;
}

.section-title {
    margin-top: var(--space-sm);

    font-size: clamp(
        2.35rem,
        4.5vw,
        4.3rem
    );

    line-height: 1;

    letter-spacing: -0.055em;
}

.section-description {
    max-width: 620px;

    margin-top: var(--space-md);

    color: var(--color-text-secondary);

    font-size: var(--text-md);

    line-height: 1.65;
}


/* =================================
   FOCUS GRID
================================= */

.focus-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 0;

    margin-top: var(--space-2xl);

    border-top: 1px solid var(--color-border-light);
}

.focus-card {
    min-height: auto;

    padding: var(--space-md) var(--space-lg);

    background: transparent;

    border-bottom: 1px solid var(--color-border-light);

    transition:
        background var(--transition-normal);
}

.focus-card:nth-child(odd) {
    border-right: 1px solid var(--color-border-light);
}

.focus-card:hover {
    background: var(--color-bg-secondary);

    transform: none;
}

.focus-number {
    display: block;

    margin-bottom: var(--space-lg);

    color: var(--color-primary);

    font-size: 0.62rem;
    font-weight: var(--weight-bold);

    letter-spacing: 0.08em;
}

.focus-card h3 {
    margin-bottom: 0.4rem;

    color: var(--color-text);

    font-size: var(--text-lg);

    letter-spacing: -0.02em;
}

.focus-card p {
    max-width: 430px;

    color: var(--color-text-muted);

    font-size: var(--text-sm);

    line-height: 1.6;
}


/* =================================
   PHILOSOPHY
================================= */

.philosophy-box {
    padding:
        var(--space-2xl)
        0;

    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.philosophy-box h2 {
    max-width: 820px;

    margin-top: var(--space-sm);

    font-size: clamp(
        2.25rem,
        4.5vw,
        4.6rem
    );

    line-height: 1;

    letter-spacing: -0.055em;
}

.philosophy-box p {
    max-width: 700px;

    margin-top: var(--space-md);

    color: var(--color-text-secondary);

    font-size: var(--text-md);

    line-height: 1.7;
}


/* =================================
   METHOD
================================= */

.about-method-grid {
    display: grid;

    grid-template-columns: 0.8fr 1.2fr;

    gap: var(--space-3xl);
}

.about-method-grid > div:first-child h2 {
    max-width: 500px;

    margin-top: var(--space-sm);

    font-size: clamp(
        2.3rem,
        3.8vw,
        3.8rem
    );

    line-height: 1;

    letter-spacing: -0.05em;
}

.method-intro {
    max-width: 450px;

    margin-top: var(--space-md);

    color: var(--color-text-secondary);

    font-size: var(--text-md);

    line-height: 1.65;
}


/* =================================
   METHOD LIST
================================= */

.method-list {
    border-top: 1px solid var(--color-border-light);
}

.method-item {
    display: grid;

    grid-template-columns: 50px 1fr;

    gap: var(--space-md);

    padding: var(--space-md) 0;

    border-bottom: 1px solid var(--color-border-light);
}

.method-item > span {
    color: var(--color-primary);

    font-size: 0.62rem;
    font-weight: var(--weight-bold);

    letter-spacing: 0.08em;
}

.method-item h3 {
    margin-bottom: 0.3rem;

    color: var(--color-text);

    font-size: var(--text-lg);
}

.method-item p {
    color: var(--color-text-muted);

    font-size: var(--text-sm);

    line-height: 1.6;
}


/* =================================
   STANDARD
================================= */

.standard-grid {
    display: grid;

    grid-template-columns: 0.8fr 1.2fr;

    gap: var(--space-3xl);
}

.standard-grid h2 {
    max-width: 500px;

    margin-top: var(--space-sm);

    font-size: clamp(
        2.2rem,
        3.8vw,
        3.8rem
    );

    line-height: 1;

    letter-spacing: -0.05em;
}

.standard-grid > div:last-child {
    max-width: 680px;
}

.standard-grid p {
    margin-bottom: var(--space-sm);

    color: var(--color-text-secondary);

    font-size: var(--text-md);

    line-height: 1.7;
}

.standard-grid .standard-lead {
    color: var(--color-text);

    font-size: clamp(
        1.3rem,
        1.9vw,
        1.7rem
    );

    line-height: 1.4;

    letter-spacing: -0.02em;
}


/* =================================
   FINAL CTA
================================= */

.about-final-box {
    max-width: 850px;

    padding:
        var(--space-2xl)
        0;
}

.about-final-box h2 {
    max-width: 800px;

    margin-top: var(--space-sm);

    font-size: clamp(
        2.6rem,
        5.5vw,
        5.5rem
    );

    line-height: 0.98;

    letter-spacing: -0.06em;
}

.about-final-box p {
    max-width: 600px;

    margin-top: var(--space-md);

    color: var(--color-text-secondary);

    font-size: var(--text-md);

    line-height: 1.65;
}

.about-final-button {
    display: inline-flex;
    align-items: center;

    gap: 0.8rem;

    margin-top: var(--space-lg);

    padding:
        0.85rem
        1.2rem;

    border: 1px solid var(--color-primary);

    border-radius: var(--border-radius-md);

    background: var(--color-primary);

    color: #ffffff;

    font-size: var(--text-sm);
    font-weight: var(--weight-bold);

    text-decoration: none;

    transition:
        transform var(--transition-normal),
        background var(--transition-normal),
        box-shadow var(--transition-normal);
}

.about-final-button:hover {
    transform: translateY(-2px);

    background: var(--color-primary-hover);

    box-shadow:
        0 10px 24px rgba(255, 59, 48, 0.16);
}


/* =================================
   RESPONSIVE
================================= */

@media (max-width: 950px) {

    .about-hero-grid {
        grid-template-columns: 1fr;

        gap: var(--space-2xl);
    }

    .about-hero-meta {
        max-width: 550px;

        padding-left: 0;
        padding-top: var(--space-md);

        border-left: none;
        border-top: 1px solid var(--color-border-light);
    }

    .about-story-grid,
    .about-method-grid,
    .standard-grid {
        grid-template-columns: 1fr;

        gap: var(--space-2xl);
    }

}


@media (max-width: 650px) {

    .about-hero {
        padding-top: 5rem;
        padding-bottom: var(--space-2xl);
    }

    .about-back-home {
        top: 1.25rem;
        right: 0;

        font-size: 0.65rem;
    }

    .about-hero-content h1 {
        font-size: clamp(
            2.9rem,
            13vw,
            4.8rem
        );
    }

    .about-hero-lead {
        margin-top: var(--space-md);

        font-size: 1rem;
    }

    .focus-grid {
        grid-template-columns: 1fr;
    }

    .focus-card {
        padding:
            var(--space-md)
            0;
    }

    .focus-card:nth-child(odd) {
        border-right: none;
    }

    .focus-number {
        margin-bottom: var(--space-md);
    }

    .philosophy-box {
        padding: var(--space-xl) 0;
    }

    .journey-equation {
        gap: 0.5rem;
    }

    .journey-equation span {
        font-size: 0.55rem;
    }

    .method-item {
        grid-template-columns: 40px 1fr;

        gap: var(--space-sm);

        padding: var(--space-sm) 0;
    }

    .about-final-box {
        padding: var(--space-xl) 0;
    }

}


@media (max-width: 450px) {

    .about-story-content p,
    .philosophy-box p,
    .standard-grid p,
    .about-final-box p {
        font-size: 0.95rem;
    }

    .about-hero-meta {
        padding-top: var(--space-sm);
    }

}