/* =========================
   GLOBAL
========================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f4f7fb;
    color: #1e293b;
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
}


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

.failure-hero {
    position: relative;
    min-height: 520px;
    background:
        linear-gradient(rgba(12, 24, 45, 0.78),
            rgba(12, 24, 45, 0.82)),
        url("../images/failure-analysis-bg.jpg") center/cover no-repeat;

    display: flex;
    align-items: center;
    padding: 120px 8%;
    overflow: hidden;
}

.failure-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top right,
            rgba(255, 255, 255, 0.08),
            transparent 35%);
}

.failure-hero-content {
    position: relative;
    z-index: 2;
    max-width: 780px;
}

.hero-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: white;
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
}

.failure-hero h1 {
    font-size: 68px;
    line-height: 1.05;
    font-weight: 800;
    color: white;
    margin-bottom: 28px;
    letter-spacing: -2px;
}

.failure-hero p {
    font-size: 19px;
    color: rgba(255, 255, 255, 0.88);
    max-width: 680px;
}


/* =========================
   MAIN SECTION
========================= */

.failure-main {
    padding: 100px 8%;
}

.failure-container {
    max-width: 1350px;
    margin: auto;
}


/* =========================
   SECTION SPACING
========================= */

.intro-section,
.importance-section,
.services-overview,
.capabilities-section,
.services-section,
.conclusion-section {
    margin-bottom: 120px;
}


/* =========================
   SECTION TITLES
========================= */

.section-title {
    font-size: 48px;
    line-height: 1.15;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 25px;
    letter-spacing: -1.5px;
}

.section-tag {
    display: inline-block;
    margin-bottom: 18px;
    color: #2563eb;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section-header {
    margin-bottom: 55px;
}


/* =========================
   INTRO SECTION
========================= */

.intro-text {
    background: white;
    border-radius: 34px;
    padding: 65px;
    box-shadow:
        0 10px 40px rgba(15, 23, 42, 0.05);
}

.intro-text h2 {
    font-size: 42px;
    line-height: 1.2;
    margin-bottom: 28px;
    color: #0f172a;
    font-weight: 800;
    letter-spacing: -1px;
}

.intro-text p {
    font-size: 17px;
    color: #475569;
    margin-bottom: 22px;
}

.intro-text p:last-child {
    margin-bottom: 0;
}


/* =========================
   IMPORTANCE GRID
========================= */

.importance-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.importance-card {
    background: white;
    border-radius: 28px;
    padding: 38px 34px;
    box-shadow:
        0 10px 35px rgba(15, 23, 42, 0.05);

    transition: 0.35s ease;
    border: 1px solid transparent;
}

.importance-card:hover {
    transform: translateY(-8px);
    border-color: #dbeafe;
    box-shadow:
        0 20px 45px rgba(37, 99, 235, 0.08);
}

.importance-number {
    font-size: 14px;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 18px;
    letter-spacing: 0.08em;
}

.importance-card h3 {
    font-size: 24px;
    line-height: 1.3;
    margin-bottom: 18px;
    color: #0f172a;
    font-weight: 700;
}

.importance-card p {
    font-size: 15.8px;
    color: #64748b;
}


/* =========================
   SERVICES OVERVIEW
========================= */

.overview-content {
    background: linear-gradient(135deg,
            #ffffff,
            #f8fbff);

    border-radius: 34px;
    padding: 70px;
    box-shadow:
        0 10px 40px rgba(15, 23, 42, 0.05);
}

.overview-content p {
    font-size: 17px;
    color: #475569;
    margin-bottom: 22px;
}

.overview-content p:last-child {
    margin-bottom: 0;
}


/* =========================
   CAPABILITY GRID
========================= */

.capability-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.capability-card {
    background: white;
    border-radius: 28px;
    padding: 42px;
    box-shadow:
        0 10px 35px rgba(15, 23, 42, 0.05);

    transition: 0.35s ease;
    border: 1px solid transparent;
}

.capability-card:hover {
    transform: translateY(-8px);
    border-color: #dbeafe;
    box-shadow:
        0 20px 45px rgba(37, 99, 235, 0.08);
}

.capability-card h3 {
    font-size: 28px;
    line-height: 1.25;
    color: #0f172a;
    margin-bottom: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.capability-card p {
    font-size: 16px;
    color: #64748b;
}


/* =========================
   SERVICES GRID
========================= */

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.service-box {
    background: white;
    border-radius: 22px;
    padding: 26px 24px;
    font-size: 15px;
    font-weight: 600;
    color: #1e293b;
    text-align: center;

    box-shadow:
        0 8px 30px rgba(15, 23, 42, 0.05);

    transition: 0.3s ease;
    border: 1px solid transparent;
}

.service-box:hover {
    transform: translateY(-5px);
    border-color: #dbeafe;
    color: #2563eb;
}


/* =========================
   CONCLUSION
========================= */

.conclusion-card {
    background:
        linear-gradient(135deg,
            #0f172a,
            #1e3a8a);

    border-radius: 36px;
    padding: 75px;
    color: white;
    overflow: hidden;
    position: relative;
}

.conclusion-card::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -100px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.conclusion-card h2 {
    position: relative;
    z-index: 2;

    font-size: 46px;
    line-height: 1.15;
    margin-bottom: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.conclusion-card p {
    position: relative;
    z-index: 2;

    font-size: 18px;
    max-width: 850px;
    color: rgba(255, 255, 255, 0.88);
}

/* =========================
   ANIMATIONS
========================= */

.hidden {
    opacity: 0;
    transform: translateY(40px);
    transition:
        opacity 0.7s ease,
        transform 0.7s ease;
}

.show {
    opacity: 1;
    transform: translateY(0);
}


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

@media (max-width: 1200px) {

    .importance-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .failure-hero h1 {
        font-size: 58px;
    }

}

@media (max-width: 900px) {

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

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .failure-hero h1 {
        font-size: 50px;
    }

    .section-title {
        font-size: 40px;
    }

    .intro-text,
    .overview-content,
    .conclusion-card {
        padding: 45px;
    }

}

@media (max-width: 640px) {

    .failure-main {
        padding: 80px 6%;
    }

    .failure-hero {
        padding: 110px 6%;
        min-height: 480px;
    }

    .failure-hero h1 {
        font-size: 42px;
    }

    .failure-hero p {
        font-size: 17px;
    }

    .section-title {
        font-size: 34px;
    }

    .importance-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .intro-text,
    .overview-content,
    .capability-card,
    .conclusion-card {
        padding: 35px;
    }

    .importance-card {
        padding: 32px;
    }

    .capability-card h3 {
        font-size: 24px;
    }

    .conclusion-card h2 {
        font-size: 36px;
    }

}