/* ============================================
   Global Star Consulting - Tier-1 Investment Banking Theme
   S&P Global Inspired - Quiet Authority Aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    /* Primary - S&P Black/Dark Grey */
    --color-primary: #121212;
    --color-primary-light: #333333;
    --color-primary-dark: #000000;

    /* Accent - S&P Red */
    --color-accent: #CE1126;
    --color-accent-light: #E61B32;
    --color-accent-dark: #A30015;

    /* Backgrounds */
    --color-white: #ffffff;
    --color-bg-light: #F4F4F4;
    --color-bg-warm: #F8F9FA;

    /* Neutrals */
    --color-gray-50: #FCFCFC;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E0E0E0;
    --color-gray-300: #CCCCCC;
    --color-gray-400: #999999;
    --color-gray-500: #666666;
    --color-gray-600: #333333;
    --color-gray-700: #1A1A1A;
    --color-gray-800: #121212;
    --color-gray-900: #000000;

    /* Typography - All Sans Serif */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;

    /* Shadows - Flat */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-xl: none;

    /* Border Radius - Sharp */
    --radius-sm: 0px;
    --radius-md: 0px;
    --radius-lg: 0px;
    --radius-xl: 0px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-gray-700);
    background-color: var(--color-white);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary);
    letter-spacing: -0.01em;
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.1;
}

h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-4);
}

h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
    font-weight: 600;
}

h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
}

p {
    margin-bottom: var(--space-4);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

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

/* Layout */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-24) 0;
}

.section-sm {
    padding: var(--space-16) 0;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

.bg-white {
    background-color: var(--color-white);
}

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

.bg-gray-50 {
    background-color: var(--color-gray-50);
}

.bg-primary {
    background-color: var(--color-primary);
}

/* ============================================
   Navigation - Clean White Bar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    padding: var(--space-3) 0;
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.navbar-brand img {
    height: 64px;
    width: auto;
}

.navbar-menu {
    display: flex;
    gap: var(--space-8);
    list-style: none;
}

.navbar-menu a {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    text-decoration: none;
    padding-bottom: 4px;
    position: relative;
    transition: color var(--transition-fast);
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-accent);
    transform-origin: bottom right;
    transition: transform 0.25s ease-out;
}

.navbar-menu a:hover {
    color: var(--color-primary);
}

.navbar-menu a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.navbar-menu a.active {
    color: var(--color-primary);
}

.navbar-menu a.active::after {
    transform: scaleX(1);
}

/* Ensure no underline for the Contact button */
.navbar-menu li:last-child a::after {
    content: none;
}

/* S&P Global Style Contact Button */
.navbar-menu li:last-child a {
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 10px 20px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    border: none;
    transition: background-color var(--transition-fast);
}

.navbar-menu li:last-child a:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-white);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
}

/* ============================================
   Hero Section - Elegant & Minimal
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(244, 244, 244, 0.8) 100%), url('../images/hero-grid.png') no-repeat center center/cover;
    color: var(--color-primary);
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gray-200), transparent);
}

.hero-short {
    min-height: 50vh;
}

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

.hero-content {
    max-width: 850px;
    text-align: center;
    margin: 0 auto;
}

.hero h1 {
    color: var(--color-primary);
    margin-bottom: var(--space-6);
    font-weight: 700;
}

.hero-lead {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    margin-bottom: var(--space-10);
    line-height: 1.8;
    font-weight: 400;
}

/* Eyebrow - Refined label */
.eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.section-dark .eyebrow {
    color: var(--color-gray-400);
}

/* ============================================
   Buttons - Refined & Professional
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: var(--color-white);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-group {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    max-width: 650px;
    margin: 0 auto var(--space-16);
    text-align: center;
}

.section-header p {
    color: var(--color-gray-600);
    font-size: var(--font-size-lg);
    line-height: 1.7;
}

/* ============================================
   Cards - Clean & Professional
   ============================================ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
}

.card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}



.card::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 4px;
    background: var(--color-accent);
    transform: scaleY(0);
    transition: transform var(--transition-base);
    transform-origin: bottom;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gray-300);
}

.card:hover::after {
    transform: scaleY(1);
}



.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    margin-bottom: var(--space-6);
    transition: all var(--transition-base);
}

.card:hover .card-icon {
    background: var(--color-primary);
    color: var(--color-white);
}

.card-icon svg {
    width: 24px;
    height: 24px;
    stroke-width: 1.5;
}

.card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
    color: var(--color-primary);
}

.card p {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    margin-bottom: 0;
    line-height: 1.7;
}

/* ============================================
   Featured Case Study
   ============================================ */
.case-study {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.case-study.reversed {
    direction: rtl;
}

.case-study.reversed>* {
    direction: ltr;
}

.case-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.case-image img {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-study:hover .case-image img {
    transform: scale(1.02);
}

.case-content .eyebrow {
    color: var(--color-accent);
}

.case-meta {
    display: inline-block;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-gray-200);
    width: 100%;
}

.check-list {
    list-style: none;
    margin: var(--space-6) 0;
}

.check-list li {
    position: relative;
    padding-left: var(--space-8);
    margin-bottom: var(--space-3);
    color: var(--color-gray-700);
}

.check-list li::before {
    color: var(--color-accent);
    font-weight: 700;
    content: '■';
    position: absolute;
    left: 0;
    font-size: 0.8em;
    top: 0.3em;
}

/* ============================================
   Dark Section
   ============================================ */
.section-dark {
    background: var(--color-primary);
    color: var(--color-white);
}

.section-dark h2,
.section-dark h3 {
    color: var(--color-white);
}

.section-dark p {
    color: rgba(255, 255, 255, 0.7);
}

.section-dark .card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.section-dark .card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: none;
}

.section-dark .card::after {
    background: var(--color-accent);
}

.section-dark .card h3 {
    color: var(--color-white);
}

.section-dark .card p {
    color: rgba(255, 255, 255, 0.6);
}

.section-dark .card-icon {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.section-dark .card:hover .card-icon {
    background: var(--color-accent);
}

/* ============================================
   Metrics
   ============================================ */
.metrics-wrapper {
    background: var(--color-primary);
    padding: var(--space-12) 0;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

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

.metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   Profile / Bio Layout
   ============================================ */
.bio-container::after {
    content: "";
    display: table;
    clear: both;
}

.bio-image-float {
    float: right;
    width: 350px;
    margin-left: var(--space-10);
    margin-bottom: var(--space-6);
}

.bio-image-float img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.bio-caption {
    margin-top: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    text-align: center;
}

.bio-caption strong {
    display: block;
    color: var(--color-primary);
    font-size: var(--font-size-base);
}

/* ============================================
   Contact Form
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.form-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-200);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-control {
    width: 100%;
    padding: var(--space-4);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--color-gray-900);
    background: var(--color-bg-light);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    background: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(11, 29, 58, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-20) 0 var(--space-10);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-16);
    margin-bottom: var(--space-16);
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.footer-desc {
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
    line-height: 1.7;
}

.footer-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
    color: var(--color-white);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-3);
    color: rgba(255, 255, 255, 0.6);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.4);
}

/* ============================================
   Animations
   ============================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {

    .case-study,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-10);
    }

    .bio-image-float {
        width: 280px;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.25rem;
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
    }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-md);
    }

    .navbar-menu.active {
        display: flex;
    }

    .navbar-toggle {
        display: block;
    }

    .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-6);
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .btn-group {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .bio-image-float {
        float: none;
        width: 100%;
        max-width: 300px;
        margin: 0 auto var(--space-8) auto;
    }

    .hero {
        padding-top: 100px;
        min-height: auto;
        padding-bottom: var(--space-16);
    }

    .hero-short {
        min-height: auto;
    }
}

/* ============================================
   Two-column layout for focus sections
   ============================================ */
.focus-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    margin-top: var(--space-10);
}

.focus-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    transition: all var(--transition-base);
}

.focus-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.2);
}

.focus-number {
    font-family: var(--font-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-4);
}

.focus-card h3 {
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.focus-card p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .focus-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Page-specific hero adjustments
   ============================================ */
.hero-page {
    min-height: 45vh;
    padding-top: 120px;
    padding-bottom: var(--space-16);
}

.hero-page .hero-content {
    max-width: 750px;
}

.hero-page h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-4);
}

.hero-page .hero-lead {
    font-size: var(--font-size-lg);
    margin-bottom: 0;
}

/* ============================================
   Insight Box (Financial Story)
   ============================================ */
.insight-box {
    border-left: 4px solid var(--color-accent);
    background: var(--color-bg-light);
    padding: var(--space-6);
    margin-top: var(--space-6);
}

.insight-box h5 {
    color: var(--color-accent);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.insight-box p {
    margin-bottom: 0;
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    line-height: 1.6;
}

/* ============================================
   Mini Card List (For Features/Process)
   ============================================ */
.mini-card-list {
    list-style: none;
    padding: 0;
    margin-top: var(--space-4);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.mini-card-list li {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-4);
    border-left: 3px solid var(--color-accent);
}

.mini-card-list li strong {
    color: var(--color-primary);
    display: block;
    margin-bottom: var(--space-1);
}