/* ===================== TOKENS ===================== */
:root {
    --navy: #0A1628;
    --navy-mid: #0E2040;
    --steel: #1B4F72;
    --aqua: #00C5C8;
    --aqua-soft: #00E5E8;
    --slate-light: #F0F4F8;
    --slate-mid: #D8E4EF;
    --white: #FFFFFF;
    --body-text: #2C3E50;
    --muted: #000;
    --font-display: Arial, sans-serif;
    ;
    --font-body: Arial, sans-serif;
}

/* ===================== RESET ===================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--body-text);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ===================== TYPOGRAPHY ===================== */
.eyebrow {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #3197db;
    display: flex;
    margin-bottom: 0.75rem;
    justify-content: center;
    flex-wrap: nowrap;
    align-content: center;
    flex-direction: row;
}

.section-title {
    font-family: var(--font-display);
    font-size: 30px;
    font-weight: 700;
    color: #000;
    line-height: 1.2;
    margin-bottom: 1.25rem;
}

.section-title--white {
    color: var(--white);
}

.section-lead {
    font-size: 18px;
    color: #000;
    /* max-width: 640px; */
    line-height: 1.8;
    text-align: center;
}

.section-lead--light {
    color: rgba(255, 255, 255, 0.75);
}

/* ===================== LAYOUT ===================== */
.container {
    width: 100%;
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 15px;
}

section {
    position: relative;
}

/* ===================== WAVE DIVIDER ===================== */
.wave-divider {
    position: relative;
    overflow: hidden;
    line-height: 0;
}

.wave-divider svg {
    display: block;
    width: 100%;
}

/* ===================== HERO BANNER ===================== */
.about-hero {
    background: linear-gradient(360deg, var(--navy) 0%, var(--navy-mid) 50%, var(--steel) 100%);
    /* min-height: 520px; */
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    /* padding: 6rem 0 5rem; */
    padding: 50px 0 50px;
}

.about-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 80% 50%, rgba(0, 197, 200, 0.10) 0%, transparent 70%),
        radial-gradient(ellipse 40% 60% at 10% 80%, rgba(27, 79, 114, 0.35) 0%, transparent 60%);
    pointer-events: none;
}

/* Animated water rings */
.hero-rings {
    position: absolute;
    right: -80px;
    top: 50%;
    transform: translateY(-50%);
    width: 520px;
    height: 520px;
    pointer-events: none;
    opacity: 0.18;
}

.ring {
    position: absolute;
    border-radius: 50%;
    border: 1.5px solid #3197db;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.3);
    animation: rippleRing 5s ease-out infinite;
}

.ring:nth-child(1) {
    width: 120px;
    height: 120px;
    animation-delay: 0s;
}

.ring:nth-child(2) {
    width: 240px;
    height: 240px;
    animation-delay: 1s;
}

.ring:nth-child(3) {
    width: 360px;
    height: 360px;
    animation-delay: 2s;
}

.ring:nth-child(4) {
    width: 480px;
    height: 480px;
    animation-delay: 3s;
}

.ring:nth-child(5) {
    width: 600px;
    height: 600px;
    animation-delay: 4s;
}

@keyframes rippleRing {
    0% {
        transform: translate(-50%, -50%) scale(0.3);
        opacity: 0;
    }

    20% {
        opacity: 1;
    }

    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
    }
}

.about-hero .container {
    position: relative;
    z-index: 2;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #3197db;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.45rem 1.1rem;
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

/* .hero-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--aqua);
    animation: pulse 2s ease infinite;
} */

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.4);
    }
}

.hero-title {
    font-family: var(--font-display);
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    /* max-width: 680px; */
    text-align: center;
}

.hero-title span {
    color: #3197db;
    display: block;
}

.hero-desc {
    font-size: 18px;
    color: #fff;
    /* max-width: 560px; */
    line-height: 1.8;
    margin-bottom: 2.5rem;
    text-align: center;
    letter-spacing: 1.2px
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: space-evenly;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-num {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: #0099ff;
    line-height: 1;
}

.hero-stat-label {
    font-size: 18px;
    font-weight: normal;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.06em;
    margin-top: 0.3rem;
}

.hero-stat-divider {
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
    align-self: stretch;
}

/* ===================== OVERVIEW ===================== */
.overview {
    padding: 45px;
    background: var(--white);
}

@media (max-width: 991px) {
    .overview {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.overview-img-wrap {
    position: relative;
}

.overview-img-wrap img {
    width: 100%;
    height: 440px;
    object-fit: cover;
    border-radius: 4px;
}

.img-badge {
    position: absolute;
    bottom: -1.5rem;
    right: -1.5rem;
    background: var(--navy);
    color: var(--white);
    padding: 1.4rem 1.8rem;
    border-radius: 4px;
    text-align: center;
    min-width: 140px;
}

.img-badge-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: #3197db;
    line-height: 1;
}

.img-badge-text {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.3rem;
}

.overview-content .section-lead {
    max-width: 100%;
    margin-bottom: 1.5rem;
}

.overview-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-top: 1.75rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.highlight-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    background: #3197db;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}

.highlight-icon svg {
    width: 12px;
    height: 12px;
    fill: none;
    stroke: #000;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.highlight-text {
    font-size: 18px;
    color: #000;
    font-weight: 500;
    line-height: 1.5;
}

/* ===================== VISION MISSION ===================== */
.vision-mission {
    background: var(--navy);
    padding: 50px;
    position: relative;
    overflow: hidden;
}

@media (max-width: 991px) {
    .vision-mission {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.vision-mission::before {
    content: '';
    position: absolute;
    top: -60px;
    left: -60px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 197, 200, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.vm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.vm-card {
    background: rgba(255, 255, 255, 0.04);
    padding: 2.5rem;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    transition: background 0.3s;
}

.vm-card:hover {
    background: rgba(255, 255, 255, 0.07);
}

.vm-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: #3197db;
}

.vm-label {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #3197db;
    margin-bottom: 1rem;
}

.vm-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 197, 200, 0.12);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.vm-icon svg {
    width: 24px;
    height: 24px;
    stroke: #3197db;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.vm-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.vm-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.68);
    line-height: 1.8;
    letter-spacing: 1.2px
}

/* ===================== CORE VALUES ===================== */
.core-values {
    padding: 50px;
    background: var(--slate-light);
}

@media (max-width: 991px) {
    .core-values {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header .section-lead {
    margin: 0 auto;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.value-card {
    background: var(--white);
    padding: 2rem 1.5rem;
    border-radius: 4px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

@media (max-width: 991px) {
    .value-card {
        padding: 10px;
    }
}

.value-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(10, 22, 40, 0.1);
}

.value-icon-wrap {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--navy), var(--steel));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.value-icon-wrap svg {
    width: 26px;
    height: 26px;
    stroke: #3197db;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.value-name {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.6rem;
}

.value-desc {
    font-size: 18px;
    color: var(--muted);
    line-height: 1.65;
}

/* ===================== ENGINEERING EXCELLENCE ===================== */
.engineering {
    padding: 50px;
    background: var(--white);
}

@media (max-width: 991px) {
    .engineering {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.eng-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.eng-content {
    order: 1;
}

.eng-img-wrap {
    order: 2;
}

.eng-img-wrap img {
    width: 100%;
    /* height: 460px; */
    height: 800px;
    /* object-fit: cover; */
    border-radius: 4px;
}

.eng-feature-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-top: 2rem;
}

.eng-feature {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.eng-feature-dot {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    background: #3197db;
    border-radius: 50%;
    margin-top: 7px;
}

.eng-feature-text {
    font-size: 18px;
    font-weight: 500;
    color: #000;
    line-height: 1.55;
}

/* ===================== INDUSTRIES ===================== */
.industries {
    background: var(--navy);
    padding: 50px;
    position: relative;
    overflow: hidden;
}

@media (max-width: 991px) {
    .industries {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.industries::after {
    content: '';
    position: absolute;
    bottom: -100px;
    right: -100px;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(0, 197, 200, 0.07) 0%, transparent 70%);
    pointer-events: none;
}

.ind-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.ind-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 4px;
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    transition: background 0.3s;
    cursor: default;
}

.ind-card:hover {
    background: rgba(255, 255, 255, 0.09);
}

.ind-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: rgba(0, 197, 200, 0.15);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ind-icon svg {
    width: 22px;
    height: 22px;
    stroke: #3197db;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ind-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.4rem;
}

.ind-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}

/* ===================== MILESTONES ===================== */
.milestones {
    padding: 50px;
    background: var(--slate-light);
}

@media (max-width: 991px) {
    .milestones {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.timeline {
    position: relative;
    margin-top: 3.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3197db, var(--steel));
    transform: translateX(-50%);
}

.timeline-items {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 40px 1fr;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 2.5rem;
}

.timeline-item:nth-child(odd) .tl-content {
    grid-column: 1;
    text-align: right;
}

.timeline-item:nth-child(odd) .tl-empty {
    grid-column: 3;
}

.timeline-item:nth-child(even) .tl-content {
    grid-column: 3;
    text-align: left;
}

.timeline-item:nth-child(even) .tl-empty {
    grid-column: 1;
}

.tl-dot {
    grid-column: 2;
    width: 40px;
    height: 40px;
    background: var(--navy);
    border: 3px solid #3197db;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    position: relative;
}

.tl-dot-inner {
    width: 10px;
    height: 10px;
    background: #3197db;
    border-radius: 50%;
}

.tl-content {
    background: var(--white);
    padding: 1.5rem 1.75rem;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(10, 22, 40, 0.06);
}

.tl-year {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #3197db;
    margin-bottom: 0.4rem;
}

.tl-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: #000;
    margin-bottom: 0.5rem;
}

.tl-desc {
    font-size: 18px;
    color: #000;
    line-height: 1.65;
}

/* ===================== SUSTAINABILITY ===================== */
.sustainability {
    padding: 50px;
    background: var(--white);
}

@media (max-width: 991px) {
    .sustainability {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.sust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.sust-pillars {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.sust-pillar {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.sust-num {
    flex-shrink: 0;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    color: #3197db;
    line-height: 1;
    min-width: 48px;
    text-align: right;
}

.sust-pillar-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.3rem;
}

.sust-pillar-text {
    font-size: 18px;
    color: var(--muted);
    line-height: 1.65;
}

.sust-img-col img {
    width: 100%;
    height: 460px;
    /* object-fit: cover; */
    border-radius: 4px;
}

.sust-img-col {
    position: relative;
}

.sust-stamp {
    position: absolute;
    top: -1.5rem;
    left: -1.5rem;
    background: #3197db;
    color: var(--navy);
    padding: 1.2rem 1.6rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.85rem;
    text-align: center;
}

.sust-stamp strong {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 900;
    display: block;
    line-height: 1;
    margin-bottom: 0.2rem;
}

/* ===================== ADVANTAGES ===================== */
.advantages {
    background: var(--slate-light);
    padding: 50px;
}

@media (max-width: 991px) {
    .advantages {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.adv-card {
    background: var(--white);
    padding: 2.25rem 2rem;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.adv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(10, 22, 40, 0.09);
}

.adv-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3197db, var(--steel));
    transform: scaleX(0);
    transition: transform 0.3s;
    transform-origin: left;
}

.adv-card:hover::after {
    transform: scaleX(1);
}

.adv-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: #3197db;
    line-height: 1;
    margin-bottom: 1rem;
}

.adv-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.65rem;
}

.adv-text {
    font-size: 18px;
    color: var(--muted);
    line-height: 1.7;
}

/* ===================== FAQ ===================== */
.faq-section {
    padding: 50px;
    background: var(--white);
}

@media (max-width: 991px) {
    .faq-section {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.faq-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 5rem;
    align-items: start;
}

.faq-sidebar .section-lead {
    max-width: 100%;
}

.faq-sidebar-note {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 2rem;
    padding: 1.1rem 1.25rem;
    background: var(--slate-light);
    border-radius: 4px;
}

.faq-sidebar-note svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    stroke: #3197db;
    fill: none;
    stroke-width: 2;
}

.faq-sidebar-note p {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.55;
}

.faq-list {
    display: flex;
    flex-direction: column;
}

.faq-item {
    border-bottom: 1px solid var(--slate-mid);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    cursor: pointer;
    text-align: left;
    gap: 1rem;
}

.faq-q-text {
    font-size: 18px;
    font-weight: 600;
    color: #000;
    line-height: 1.45;
    transition: color 0.2s;
}

.faq-question:hover .faq-q-text {
    color: #3197db;
}

.faq-toggle {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    background: var(--slate-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.3s;
}

.faq-toggle svg {
    width: 14px;
    height: 14px;
    stroke: var(--navy);
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.3s;
}

.faq-item.open .faq-toggle {
    background: #3197db;
}

.faq-item.open .faq-toggle svg {
    stroke: var(--navy);
    transform: rotate(45deg);
}

.faq-answer {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.4s ease;
}

.faq-answer-inner {
    padding-bottom: 1.5rem;
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.8;
}

/* ===================== CTA ===================== */
.cta-section {
    background: #3197db;
    padding: 50px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

@media (max-width: 991px) {
    .cta-section {
        padding: 0px;
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 50% 80% at 20% 50%, rgba(0, 197, 200, 0.1) 0%, transparent 60%),
        radial-gradient(ellipse 50% 80% at 80% 50%, rgba(0, 197, 200, 0.07) 0%, transparent 60%);
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.25rem;
    line-height: 1.2;
}

.cta-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 900px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.cta-btns {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: #000;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.9rem 2.2rem;
    border-radius: 4px;
    letter-spacing: 0.04em;
    transition: background 0.25s, transform 0.2s;
}

.btn-primary:hover {
    background: #fff;
    color: #000;
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: transparent;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.9rem 2.2rem;
    border-radius: 4px;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    letter-spacing: 0.04em;
    transition: border-color 0.25s, background 0.25s, transform 0.2s;
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.7);
    background: #fff;
    color: #000;
    transform: translateY(-2px);
}

/* ===================== PLACEHOLDER IMAGE ===================== */
.img-placeholder {
    background: linear-gradient(135deg, #0E2040, #1B4F72);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    text-align: center;
    /* padding: 2rem; */
}

.img-placeholder svg {
    width: 48px;
    height: 48px;
    stroke: rgba(0, 197, 200, 0.5);
    fill: none;
    stroke-width: 1.5;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .faq-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {

    .overview-grid,
    .vm-grid,
    .eng-grid,
    .sust-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .eng-content {
        order: 2;
    }

    .eng-img-wrap {
        order: 1;
    }

    /* .eng-img-wrap img, */
    .sust-img-col img,
    .overview-img-wrap img {
        height: 280px;
    }

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

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

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

    .hero-stats {
        gap: 1.5rem;
    }

    .hero-stat-divider {
        display: none;
    }

    .timeline::before {
        left: 20px;
    }

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

    .timeline-item:nth-child(odd) .tl-content,
    .timeline-item:nth-child(even) .tl-content {
        grid-column: 2;
        text-align: left;
    }

    .tl-dot {
        grid-column: 1;
    }

    .tl-empty {
        display: none;
    }

    .img-badge {
        right: 0;
        bottom: -1rem;
    }

    .sust-stamp {
        top: 0;
        left: 0;
    }
}

@media (max-width: 520px) {
    /* .values-grid {
        grid-template-columns: 1fr;
    } */

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

    .eng-feature-list {
        grid-template-columns: 1fr;
    }

    .hero-rings {
        display: none;
    }
}



/* ============================================
   CERTIFICATIONS SECTION
   ============================================ */

.certifications-section {
    padding: 50px 0 50px;
    /* background: linear-gradient(181deg, var(--navy) 0%, var(--navy-mid) 50%, var(--steel) 100% 100%); */
    background: #e8f2fb;
    position: relative;
}

/* ---- Header ---- */
.cert-section-header {
    text-align: center;
    margin-bottom: 52px;
}

.cert-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #2684E5;
    margin-bottom: 10px;
}

.cert-heading {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 700;
    color: #000;
    margin: 0 0 14px;
    line-height: 1.25;
}

.cert-subtext {
    font-size: 18px;
    color: #000;
    /* max-width: 560px; */
    margin: 0 auto;
    line-height: 1.7;
}

/* ---- Grid — exactly 3 columns on desktop ---- */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* ---- Card ---- */
.cert-card {
    background: #ffffff;
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 2px 14px rgba(15, 40, 80, 0.07);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
    outline: none;
    display: flex;
    flex-direction: column;
    border: 1px solid #000;
    /* height: 400px; */
}

.cert-card:hover,
.cert-card:focus-visible {
    transform: translateY(-6px);
    box-shadow: 0 14px 40px rgba(38, 132, 229, 0.16);
}

.cert-card:focus-visible {
    outline: 2px solid #2684E5;
    outline-offset: 3px;
}

/* ---- Certificate Image Wrapper ---- */
.cert-img-wrap {
    position: relative;
    width: 100%;
    /* aspect-ratio: 6 / 6; */
    background: #eef2f8;
    /* overflow: hidden; */
    flex-shrink: 0;
}

.cert-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform 0.3s ease;
}

.cert-card:hover .cert-img-wrap img {
    transform: scale(1.03);
}

/* ---- Hover Overlay ---- */
.cert-hover-overlay {
    position: absolute;
    inset: 0;
    background: rgba(38, 132, 229, 0.72);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.cert-card:hover .cert-hover-overlay,
.cert-card:focus-visible .cert-hover-overlay {
    opacity: 1;
}

.cert-zoom-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-hover-text {
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    letter-spacing: 0.5px;
}

/* ---- Card Footer ---- */
.cert-card-footer {
    padding: 16px 18px 18px;
    flex: 1;
    background: #3197db;
}

.cert-card-footer .cert-name {
    font-size: 15px;
    font-weight: 700;
    color: #0d1b2e;
    margin: 0 0 4px;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cert-card-footer .cert-issuer {
    font-size: 13px;
    color: #7a8fa6;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   LIGHTBOX / POPUP OVERLAY
   ============================================ */

.cert-overlay {
    position: fixed;
    inset: 0;
    background: rgba(8, 18, 40, 0.78);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.cert-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

/* ---- Lightbox Box ---- */
.cert-lightbox {
    position: relative;
    background: #ffffff;
    border-radius: 18px;
    width: 100%;
    max-width: 680px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(28px) scale(0.96);
    transition: transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 40px 100px rgba(8, 18, 40, 0.38);
}

.cert-overlay.is-open .cert-lightbox {
    transform: translateY(0) scale(1);
}

.cert-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 100000;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #ffffff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0d1b2e;
    font-size: 26px;
    line-height: 1;
    font-weight: 400;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    transition: background 0.18s ease, color 0.18s ease, transform 0.22s ease;
}

.cert-close-btn:hover {
    background: #2684E5;
    color: #ffffff;
    transform: rotate(90deg);
}

.cert-close-btn:focus-visible {
    outline: 2px solid #2684E5;
    outline-offset: 2px;
}


/* ---- Image Area ---- */
.cert-lightbox-img-wrap {
    flex: 1;
    overflow-y: auto;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: #f0f4fa;
    /* min-height: 300px; */
    position: relative;
    /* padding: 28px; */
}

.cert-lightbox-img-wrap::-webkit-scrollbar {
    width: 5px;
}

.cert-lightbox-img-wrap::-webkit-scrollbar-track {
    background: transparent;
}

.cert-lightbox-img-wrap::-webkit-scrollbar-thumb {
    background: #c8d4e0;
    border-radius: 3px;
}

#certLightboxImg {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(15, 40, 80, 0.13);
    transition: opacity 0.2s ease;
}

#certLightboxImg.is-loading {
    opacity: 0;
}

/* ---- Loader Spinner ---- */
.cert-lightbox-loader {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: #f0f4fa;
}

.cert-lightbox-loader.is-visible {
    display: flex;
}

.cert-lightbox-loader svg {
    animation: cert-spin 1s linear infinite;
}

@keyframes cert-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ---- Footer — FIXED: centered layout ---- */
.cert-lightbox-footer {
    padding: 16px 20px 18px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-shrink: 0;
    border-top: 1px solid #e8edf4;
}

.cert-lightbox-info {
    text-align: center;
    flex: unset;
    min-width: 0;
}

.cert-lightbox-info h3 {
    font-size: 16px;
    font-weight: 700;
    color: #0d1b2e;
    margin: 0 0 2px;
}

.cert-lightbox-info p {
    font-size: 13px;
    color: #7a8fa6;
    margin: 0;
}

/* ---- Nav stays on the right side ---- */
.cert-lightbox-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Mobile footer fix */
@media (max-width: 575px) {
    .cert-lightbox-footer {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 14px 16px 16px;
    }

    .cert-lightbox-nav {
        align-self: center;
    }
}

.cert-nav-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f0f4fa;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3a4a5c;
    transition: background 0.18s ease, color 0.18s ease;
}

.cert-nav-btn:hover {
    background: #2684E5;
    color: #ffffff;
}

.cert-nav-btn:focus-visible {
    outline: 2px solid #2684E5;
    outline-offset: 2px;
}

.cert-nav-count {
    font-size: 13px;
    font-weight: 600;
    color: #5a6a7e;
    min-width: 40px;
    text-align: center;
}

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

@media (max-width: 991px) {
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }
}

@media (max-width: 575px) {
    .certifications-section {
        padding: 60px 0 70px;
    }

    .cert-grid {
        grid-template-columns: repeat(1, 1fr);
        gap: 25px;
    }

    .cert-card-footer {
        padding: 12px 14px 14px;
    }

    .cert-card-footer .cert-name {
        font-size: 13px;
    }

    .cert-lightbox {
        max-height: 95vh;
        border-radius: 14px;
    }

    .cert-lightbox-img-wrap {
        padding: 18px;
    }

    .cert-lightbox-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 14px 16px 16px;
    }

    .cert-lightbox-nav {
        align-self: center;
    }
}