/* --- BRAND VARIABLES --- */
:root {
    --brand-blue: #004070;
    --brand-dark: #002a4b;
    --brand-yellow: #FFC107;
    --brand-pink: #FF4D8D;
    --brand-success: #28a745;
    --text-main: #1d1d1f;
    --text-light: #555555;
    --bg-light: #f4f7fa;
    --bg-ice-blue: #f0f8ff;
    --white: #ffffff;
    --font-stack: 'Inter', sans-serif;
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.12);
    --radius-md: 16px;
}

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

body {
    background: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius-md);
}

p {
    margin-bottom: 1rem;
}

/* --- UTILITIES --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background: var(--bg-light);
}

.bg-ice-blue {
    background: var(--bg-ice-blue);
}

.bg-blue {
    background: linear-gradient(135deg, var(--brand-blue), var(--brand-dark));
    color: var(--white);
}

.text-center {
    text-align: center;
}

.section-tag {
    display: inline-block;
    background: var(--brand-yellow);
    color: var(--brand-blue);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--brand-blue);
}

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

.section-desc {
    max-width: 750px;
    margin: 0 auto 30px !important;
    font-size: 1.15rem;
    color: var(--text-light);
    text-align: start;
    max-width: 803px;
}

/* --- ANIMATIONS --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all .8s ease;
}

.reveal.active {
    opacity: 1;
    transform: none;
}

/* --- HERO --- */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), url('https://d1e5ggoymkuik7.cloudfront.net/case-studies/we-are-social/banner.jpg');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 180px 0 120px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: var(--white);
	line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin: 0 auto;
    opacity: 0.95;
    font-weight: 300;
    color: var(--white);
}

/* --- OVERLAPPING CARD --- */
.client-section {
    margin-top: -80px;
    position: relative;
    z-index: 10;
    padding-bottom: 60px;
}

.client-box {
    background: var(--white);
    padding: 60px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    border-top: 6px solid var(--brand-pink);
}

.client-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

/* --- CHALLENGE/LANDSCAPE CARDS --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.problem-card {
    background: var(--white);
    padding: 45px 35px;
    border-radius: var(--radius-md);
    border: 1px solid #eef2f6;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--brand-pink);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--brand-pink);
    margin-bottom: 20px;
    opacity: 0.2;
    position: absolute;
    top: 30px;
    right: 30px;
}

.problem-card h4 {
    color: var(--brand-blue);
    font-size: 1.4rem;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.problem-card p {
    position: relative;
    z-index: 1;
}

/* --- USER RESEARCH SECTION STYLES --- */
.user-research {
    background: linear-gradient(180deg, #f9fbfd, #ffffff);
}

.research-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 60px;
    align-items: center;
}

.research-points {
    display: grid;
    gap: 22px;
    margin-top: 30px;
}

.research-card {
    background: #fff;
    border-radius: 18px;
    padding: 28px 30px;
    border-left: 5px solid var(--brand-blue);
    box-shadow: 0 10px 25px rgba(0, 64, 112, .06);
    transition: .4s ease;
}

.research-card:hover {
    transform: translateX(8px);
    border-left-color: var(--brand-pink);
    box-shadow: var(--shadow-hover);
}

.research-card h4 {
    font-size: 1.1rem;
    color: var(--brand-blue);
    margin-bottom: 6px;
}

.research-card p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 0;
}

.research-visual {
    position: relative;
}

.research-visual img {
    box-shadow: 0 25px 60px rgba(0, 0, 0, .15);
}

.research-badge {
    position: absolute;
    top: -20px;
    right: -20px;
    background: var(--brand-pink);
    color: #fff;
    padding: 16px 22px;
    border-radius: 18px;
    font-weight: 800;
    box-shadow: 0 10px 30px rgba(255, 77, 141, .4);
}

/* --- IMPLEMENTATION APPROACH UI --- */
.approach-container {
    position: relative;
    max-width: 900px;
    margin: 40px auto 0;
    padding-left: 40px;
}

.approach-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: #eef2f6;
    border-radius: 10px;
}

.approach-step {
    position: relative;
    margin-bottom: 30px;
    background: #fff;
    padding: 25px 30px;
    border-radius: 16px;
    border: 1px solid #eef2f6;
    transition: all 0.3s ease;
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 20px;
    align-items: center;
}

.approach-step:hover {
    border-color: var(--brand-pink);
    transform: translateX(10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.approach-step::before {
    content: '';
    position: absolute;
    left: -46px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: var(--white);
    border: 4px solid var(--brand-blue);
    border-radius: 50%;
    z-index: 2;
    transition: 0.3s;
}

.approach-step:hover::before {
    background: var(--brand-pink);
    border-color: var(--brand-pink);
    scale: 1.2;
}

.step-phase {
    font-weight: 800;
    color: var(--brand-blue);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.step-focus {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 4px;
}

.step-outcome {
    font-size: 0.95rem;
    color: var(--text-light);
    margin: 0;
}

.step-outcome strong {
    color: var(--brand-pink);
    font-weight: 600;
}

/* --- ARCHITECTURE GRID --- */
.arch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 50px;
}

.arch-grid p {
    color: var(--white);
}

.arch-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 35px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
}

.arch-item i {
    font-size: 2.5rem;
    color: var(--brand-pink);
    margin-bottom: 20px;
    display: block;
}

.arch-item h5 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--brand-yellow);
}

.arch-item p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: 0;
}

/* --- IMPACT GRID CARDS --- */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.metric-card {
    background: white;
    border-radius: 20px;
    padding: 35px 28px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 64, 112, 0.05);
    transition: all 0.35s ease;
    border: 1px solid #eef2f6;
}

.metric-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 64, 112, 0.12);
    border-color: var(--brand-blue);
}

.metric-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-light);
    font-weight: 700;
    margin-bottom: 20px;
    display: block;
}

.metric-comparison {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    gap: 10px;
}

.metric-value {
    flex: 1;
    text-align: center;
}

.metric-value-label {
    font-size: 0.7rem;
    color: #888;
    text-transform: uppercase;
    margin-bottom: 5px;
    font-weight: 600;
}

.metric-value-number {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--brand-blue);
}

.metric-arrow {
    font-size: 1.2rem;
    color: #cbd5e0;
}

.metric-delta {
    background: rgba(40, 167, 69, 0.03);
    border: 1.5px solid var(--brand-success);
    border-radius: 12px;
    padding: 12px 15px;
    text-align: center;
}

.metric-delta-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--brand-success);
    display: block;
    line-height: 1;
}

.metric-delta-label {
    font-size: 0.75rem;
    color: var(--brand-success);
    margin-top: 5px;
    font-weight: 600;
    text-transform: uppercase;
}

/* --- WHY IT WORKED SECTION --- */
.success-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(370px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.success-factor-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-md);
    border-left: 5px solid var(--brand-blue);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.04);
    transition: 0.3s;
}

.success-factor-card:hover {
    background: #fdfdfd;
    transform: translateX(5px);
    border-left-color: var(--brand-pink);
}

.factor-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    gap: 12px;
}

.factor-header i {
    color: var(--brand-pink);
    font-size: 1.2rem;
}

.factor-title {
    font-weight: 800;
    color: var(--brand-blue);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.factor-desc {
    font-size: 1rem;
    color: var(--text-light);
    margin: 0;
}

/* --- PRINCIPLES --- */
.section-principles {
    background-color: #f0f5ff;
}

.principles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(370px, 1fr));
    gap: 40px 30px;
    padding: 0px 0px;
}

.modern-principle-card {
    position: relative;
    background: #ffffff;
    padding: 50px 30px 35px;
    border-radius: 20px;
    border: 1px solid #eef2f6;
    box-shadow: 0 10px 25px rgba(0, 64, 112, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.modern-principle-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 64, 112, 0.12);
    border-color: var(--brand-pink);
}

.principle-number {
    position: absolute;
    top: -15px;
    left: 30px;
    background: var(--brand-blue);
    color: var(--brand-yellow);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    border-radius: 14px;
    z-index: 2;
}

.principle-bg-icon {
    position: absolute;
    right: -10px;
    bottom: -10px;
    font-size: 6rem;
    color: rgba(0, 64, 112, 0.03);
    transform: rotate(-15deg);
    pointer-events: none;
    transition: 0.3s;
}

.modern-principle-card:hover .principle-bg-icon {
    color: rgba(255, 77, 141, 0.07);
    transform: rotate(0deg) scale(1.1);
}

.modern-principle-card p {
    font-size: 1.1rem;
    color: var(--brand-blue);
    font-weight: 600;
    line-height: 1.6;
    margin: 0;
    position: relative;
    z-index: 1;
}

.principle-accent {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 5px;
    background: linear-gradient(90deg, var(--brand-blue), var(--brand-pink));
    transition: width 0.5s ease;
}

.modern-principle-card:hover .principle-accent {
    width: 100%;
}

/* --- QUOTE --- */
.quote-box {
    background: var(--white);
    padding: 70px 50px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    position: relative;
}

.quote-icon {
    font-size: 4rem;
    color: rgba(255, 193, 7, 0.2);
    position: absolute;
    top: 30px;
    left: 30px;
}

.quote-text {
    font-size: 1.3rem;
    font-style: italic;
    margin-bottom: 30px;
    color: #333;
}

.profile-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    object-fit: cover;
}

@media (max-width: 900px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .client-grid,
    .arch-grid,
    .card-grid,
    .research-grid {
        grid-template-columns: 1fr;
    }

    .client-box {
        padding: 30px;
    }

    .approach-step {
        grid-template-columns: 1fr;
        padding-left: 20px;
    }

    .approach-container {
        padding-left: 30px;
    }
}

@media only screen and (min-width: 992px) {
    .ebook-form-wrap {
        max-width: none;
    }
}

.meta-tag {
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
}

.quote-box {
    background: var(--white);
    padding: 70px 50px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    position: relative;
}

.quote-icon {
    font-size: 4rem;
    color: rgba(255, 193, 7, 0.2);
    position: absolute;
    top: 30px;
    left: 30px;
}

.feedback-desc {
    max-width: 920px;
    margin: 20px auto 40px !important;
    line-height: 1.8;
    color: var(--text-main);
    text-align: start;
}