@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

/* =========================================
   PREMIUM VARIABLES & SETUP
   ========================================= */
:root {
    --osr-blue: #0248F6;
    --osr-blue-dark: #002DB3;
    --osr-blue-glow: rgba(2, 72, 246, 0.4);
    --osr-blue-glass: rgba(2, 72, 246, 0.05);
    
    --text-main: #181818;      /* Carbon Matrix */
    --text-muted: #5e646a;     /* Sophisticated Grey */
    --text-light: #9ba0a6;
    
    --bg-white: #ffffff;
    --bg-light: #f9fbff;       
    --bg-dark: #111316;        
    
    --border-color: #e5e9f0;
    --border-light: rgba(255, 255, 255, 0.1);
    --red-alert: #f03e3e;
    
    --font-primary: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 40px -8px rgba(2, 72, 246, 0.12);
    --shadow-blue: 0 12px 32px -4px rgba(2, 72, 246, 0.35);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --radius-full: 9999px;
    
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.75; /* Improved Readability */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: color 0.3s var(--ease-out); }
ul { list-style: none; }
strong { color: var(--osr-blue); font-weight: 700; }

/* =========================================
   ANIMATIONS
   ========================================= */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0%   { transform: translateY(0px) rotate(-2deg); }
    50%  { transform: translateY(-12px) rotate(-1.5deg); }
    100% { transform: translateY(0px) rotate(-2deg); }
}

@keyframes floatBack {
    0%   { transform: translateY(0px) rotate(5deg) scale(0.95); }
    50%  { transform: translateY(8px) rotate(4deg) scale(0.95); }
    100% { transform: translateY(0px) rotate(5deg) scale(0.95); }
}

@keyframes pulseRed {
    0%   { box-shadow: 0 0 0 0 rgba(240, 62, 62, 0.4); }
    70%  { box-shadow: 0 0 0 8px rgba(240, 62, 62, 0); }
    100% { box-shadow: 0 0 0 0 rgba(240, 62, 62, 0); }
}

@keyframes spinSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Base fade-up application */
.hero-content > *, .section-header, .feature-card, .sector-card, .stats-grid, .who-card {
    animation: fadeUp 1s var(--ease-out) forwards;
    opacity: 0;
}
.hero .tagline { animation-delay: 0.1s; }
.hero-title { animation-delay: 0.2s; }
.hero-subtitle { animation-delay: 0.3s; }
.hero .subscribe-form { animation-delay: 0.4s; }
.hero .form-disclaimer { animation-delay: 0.5s; }
.hero-actions { animation-delay: 0.6s; }

/* =========================================
   UTILITIES
   ========================================= */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 32px;
}
.relative-z { position: relative; z-index: 10; }

.text-blue { 
    color: var(--osr-blue); 
    background: linear-gradient(135deg, #0248F6, #4C82FF);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.bg-light { background-color: var(--bg-light); border-top: 1px solid var(--border-color); }
.bg-dark { background-color: var(--bg-dark); }
.bg-primary { 
    background: linear-gradient(135deg, var(--osr-blue) 0%, var(--osr-blue-dark) 100%); 
}
.text-white { color: #fff; }
.text-white strong { color: #fff; background: none; -webkit-text-fill-color: inherit; border-bottom: 2px solid rgba(255,255,255,0.4); padding-bottom: 2px; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-8 { margin-top: 2.5rem; }
.mt-auto { margin-top: auto; }

/* Typography */
.section-label {
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--osr-blue);
    margin-bottom: 1.25rem;
    display: inline-block;
}
.section-label.light { color: rgba(255,255,255,0.7); }
.section-title {
    font-size: 2.75rem; /* Rescaled down */
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.editorial-row .section-title {
    font-weight: 600;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 700px;
    line-height: 1.6;
}
.section-subtitle.centered { margin-left: auto; margin-right: auto; margin-bottom: 3rem; }
.section { padding: 7rem 0; position: relative; } /* Reduced padding */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    border: none;
    transition: all 0.4s var(--ease-out);
    text-align: center;
    letter-spacing: 0.02em;
}
.btn-primary {
    background: linear-gradient(135deg, var(--osr-blue), #0036C2);
    color: #fff;
    box-shadow: 0 4px 15px rgba(2, 72, 246, 0.2);
}
.btn-primary:hover { 
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue); 
}
.btn-primary-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}
.btn-primary-outline:hover {
    border-color: var(--osr-blue);
    color: var(--osr-blue);
    box-shadow: var(--shadow-md);
}
.btn-white {
    background-color: #fff;
    color: var(--osr-blue);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.btn-white:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}
.btn-text {
    background: none;
    color: var(--osr-blue);
    padding: 0;
    font-weight: 700;
}
.btn-text:hover { color: var(--osr-blue-dark); text-decoration: none; transform: translateX(4px); }
.btn-sm { padding: 0.625rem 1.5rem; font-size: 0.875rem; }
.btn-icon svg { margin-left: 0.5rem; width: 1.25rem; height: 1.25rem; transition: transform 0.3s ease; }
.btn-icon:hover svg { transform: translateX(4px); }
.btn-icon.small svg { width: 1.1rem; height: 1.1rem; }

/* Forms */
.subscribe-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    background: #fff;
    padding: 0.5rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.subscribe-form:focus-within {
    border-color: rgba(2, 72, 246, 0.5);
    box-shadow: 0 0 0 4px var(--osr-blue-glass);
}
.subscribe-form input {
    flex: 1;
    padding: 0.5rem 1.5rem;
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-main);
    outline: none;
}
.subscribe-form input::placeholder { color: var(--text-light); }
.subscribe-form .btn { padding: 0.875rem 2rem; }
.form-large { max-width: 500px; }
.form-disclaimer {
    font-size: 0.8125rem;
    color: var(--text-light);
    font-weight: 500;
    padding-left: 1rem;
}

/* =========================================
   HEADER
   ========================================= */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo {
    display: flex;
    align-items: center;
    height: 36px;
    transition: opacity 0.3s ease;
}
.logo:hover { opacity: 0.8; }
.logo img { height: 100%; width: auto; }

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    position: relative;
    padding: 8rem 0;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}
/* Premium animated background */
.hero-bg-grid {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(2, 72, 246, 0.04), transparent 30%),
        radial-gradient(circle at 85% 30%, rgba(2, 72, 246, 0.06), transparent 40%),
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px;
    z-index: -1;
    mask-image: radial-gradient(circle at center, black 40%, transparent 90%);
    -webkit-mask-image: radial-gradient(ellipse at center 40%, black 50%, transparent 100%);
}

/* Animated SVG Sketch Layer */
.hero-sketch-layer {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    mask-image: radial-gradient(circle at center 40%, black 50%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse at 40% 40%, black 40%, transparent 90%);
}
.hero-sketch-layer svg {
    width: 100%; height: 100%;
    opacity: 0.6;
}
.sketch-line {
    fill: none;
    stroke: rgba(2, 72, 246, 0.6);
    stroke-width: 1.5;
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    stroke-linecap: round;
    stroke-linejoin: round;
    animation: sketchDraw 12s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}
.sketch-text {
    stroke: rgba(2, 72, 246, 0.3);
    stroke-width: 3;
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    stroke-linecap: round;
    animation: sketchText 12s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

/* Animation Delays */
.delay-1 { animation-delay: 0.5s; }
.delay-2 { animation-delay: 1.0s; }
.delay-3 { animation-delay: 1.5s; }
.delay-4 { animation-delay: 2.0s; }
.delay-5 { animation-delay: 2.5s; }
.delay-6 { animation-delay: 3.0s; }
.delay-7 { animation-delay: 3.5s; }

@keyframes sketchDraw {
    0% { stroke-dashoffset: 2000; opacity: 1; }
    25%, 80% { stroke-dashoffset: 0; opacity: 1; }
    90%, 100% { stroke-dashoffset: 0; opacity: 0; }
}
@keyframes sketchText {
    0%, 15% { stroke-dashoffset: 100; opacity: 1; }
    30%, 80% { stroke-dashoffset: 0; opacity: 1; }
    90%, 100% { stroke-dashoffset: 0; opacity: 0; }
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 6rem;
    align-items: center;
}
.hero-content {
    background: transparent;
    padding-right: 0;
}
.hero-title {
    font-size: 3.75rem; /* Rescaled down */
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
    color: var(--text-main);
}
.hero-highlight {
    font-family: 'IBM Plex Serif', 'Georgia', serif;
    font-style: italic;
    font-weight: 600;
    color: var(--osr-blue);
}
.hero-subtitle {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    max-width: 50ch;
    line-height: 1.6;
}
.hero-actions {
    margin-top: 0;
    padding-left: 0;
    margin-bottom: 3rem;
}
.hero-btn-group {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.subscribe-input-group {
    display: flex;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    padding: 0.5rem;
    border: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}
.hero-meta {
    font-size: 0.8125rem;
    color: var(--text-light);
    font-weight: 500;
    padding-left: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.hero-meta::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--border-color);
}

/* Premium Floating Cards */
.card-stack {
    position: relative;
    width: 100%;
    aspect-ratio: 4/4;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}
.card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.4);
    position: absolute;
    width: 420px;
}
.card-back {
    height: 520px;
    background: linear-gradient(135deg, var(--bg-dark), #1a1f26);
    transform: rotate(5deg) scale(0.95);
    z-index: 1;
    opacity: 0.9;
    box-shadow: var(--shadow-lg);
    animation: floatBack 6s ease-in-out infinite reverse;
}
.card-front {
    padding: 3.5rem 3rem;
    z-index: 2;
    transform: rotate(-2deg);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-blue);
    animation: float 6s ease-in-out infinite;
    border: 1px solid rgba(255,255,255,0.8);
}
.card-hero-img-wrapper {
    margin: -3.5rem -3rem 1.5rem -3rem;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
}
.card-hero-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    transform: scale(1.05); /* Slight scale to ensure no edge gaps */
}
.card-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    margin-bottom: 2rem;
    text-transform: uppercase;
}
.red-dot {
    width: 10px; height: 10px;
    background-color: var(--red-alert);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(240, 62, 62, 0.4);
    animation: pulseRed 2s infinite;
}
.card-title {
    font-size: 1.5rem; /* Scaled down */
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--text-main);
}
.card-excerpt {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}
.card-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1.75rem;
}
.read-time {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    font-weight: 500;
}
.tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.8rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-muted);
}

/* =========================================
   WHO WE ARE (Editorial Layout)
   ========================================= */
.editorial-row {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 4rem;
    padding: 4rem 0;
    align-items: start;
}
.editorial-label .section-label {
    margin-bottom: 0;
}
.desc-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}
.divider-subtle {
    height: 1px;
    background: var(--border-color);
    width: 100%;
    opacity: 0.5;
}

.who-text .section-title { margin-bottom: 1.5rem; }
.who-text .section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 60ch; /* Readability Cap */
}
.lead-text {
    font-size: 1.5rem !important;
    line-height: 1.5 !important;
    color: var(--text-main) !important;
    font-weight: 500;
    max-width: 45ch !important;
}

.who-card {
    padding: 5rem 4rem;
    border-radius: var(--radius-xl);
    color: #fff;
    box-shadow: 0 30px 60px -12px rgba(2, 72, 246, 0.4);
    position: relative;
    overflow: hidden;
    margin-top: 2rem;
}
.banner-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.who-card-inner {
    position: relative;
    z-index: 2;
}
/* Abstract Graphic Pattern Base */
.css-illustration-circles {
    position: absolute;
    top: -50%; right: -20%;
    width: 200%; height: 200%;
    pointer-events: none;
    z-index: 1;
}
.css-illustration-circles .circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}
.circle-1 { width: 300px; height: 300px; animation: spinSlow 30s linear infinite; border-style: dashed !important; }
.circle-2 { width: 500px; height: 500px; animation: spinSlow 45s linear infinite reverse; }

.dark-circles { top: -100%; right: 0; width: 100%; }
.dark-circles .circle { border-color: rgba(255,255,255,0.03); }

.card-mini-title {
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.6);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}
.card-large-text {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}
.card-medium-text {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.5;
    color: rgba(255,255,255,0.9);
}

/* =========================================
   WHAT'S INSIDE
   ========================================= */
.whats-inside {
    background: var(--bg-light);
    position: relative;
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem; /* Expanded gap */
    margin-top: 4rem;
}
.feature-card {
    background: #fff;
    padding: 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    transition: all 0.5s var(--ease-out);
    position: relative;
    z-index: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
/* Micro-interaction hover effect */
.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--osr-blue), #4C82FF);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out);
    z-index: 2;
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -8px rgba(0,0,0,0.08);
    border-color: transparent;
}
.feature-card:hover::after {
    transform: scaleX(1);
}
.card-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}
.card-content {
    position: relative;
    z-index: 2;
}

/* Data Grid Background for Labs Sections */
.data-grid-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, rgba(2, 72, 246, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(2, 72, 246, 0.05) 1px, transparent 1px);
    z-index: 0;
}

/* Experiment Evidence Tags */
.experiment-tag {
    position: absolute;
    top: -12px; right: 24px;
    background: var(--text-main);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: 'IBM Plex Sans', monospace;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    z-index: 20;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 4px 12px rgba(2, 72, 246, 0.15);
}

/* Giant Watermarks */
.step-num-watermark {
    position: absolute;
    bottom: -10px;
    right: 5px;
    font-size: 8rem; /* Rescaled down */
    font-weight: 800;
    color: rgba(2, 72, 246, 0.04);
    line-height: 0.7;
    letter-spacing: -0.05em;
    user-select: none;
    z-index: 0;
    pointer-events: none;
}

/* Icon Pedestals */
.icon-pedestal {
    width: 64px; height: 64px;
    background: var(--osr-blue-glass);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.4s var(--ease-out), background 0.4s ease;
}
.feature-card:hover .icon-pedestal, .sector-card:hover .icon-pedestal {
    background: rgba(2, 72, 246, 0.1);
    transform: scale(1.05);
}
.brand-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    transition: transform 0.4s var(--ease-out);
}
.feature-card .brand-icon {
    width: 44px;
    height: 44px;
}
.feature-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
}
.feature-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.75;
}

/* CSS Cross / Target Marks */
.grid-cross {
    position: absolute; 
    width: 20px; height: 20px;
    pointer-events: none; 
    opacity: 0.15;
}
.grid-cross::before, .grid-cross::after {
    content: ''; position: absolute; background: var(--text-main);
}
.grid-cross::before { top: 50%; left: 0; width: 100%; height: 1px; }
.grid-cross::after { top: 0; left: 50%; width: 1px; height: 100%; }
.gc-tl { top: 40px; left: 40px; }
.gc-tr { top: 40px; right: 40px; }

/* =========================================
   5 BLUE OCEAN SECTORS
   ========================================= */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 5rem;
    margin-bottom: 2.5rem;
}
.sectors-grid-bottom {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    max-width: 66.666%;
    margin: 0 auto;
}
.sector-card {
    background: #fff;
    padding: 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.4s var(--ease-out);
    display: flex; flex-direction: column;
    position: relative;
    overflow: hidden;
}
.sector-bg-img {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    filter: grayscale(100%) opacity(0.08);
    z-index: 0;
    pointer-events: none;
    transition: transform 0.6s var(--ease-out), filter 0.6s var(--ease-out);
}
.sector-card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(2, 72, 246, 0.2);
    transform: translateY(-4px);
}
.sector-card:hover .sector-bg-img {
    transform: scale(1.05);
    filter: grayscale(100%) opacity(0.15);
}
.sector-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
}
.sector-desc {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.75;
}

/* =========================================
   STATS SECTION (Premium Dark Mode)
   ========================================= */
.stats { 
    padding: 8rem 0; 
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}
.stats::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw; height: 60vw;
    background: radial-gradient(circle, rgba(2, 72, 246, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
    margin-bottom: 6rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 6rem;
}
.stat-item {
    transition: transform 0.3s ease;
}
.stat-item:hover {
    transform: translateY(-10px);
}
.stat-num {
    font-size: 5.5rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.stat-label {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    letter-spacing: 0.02em;
}
.stats-quote {
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.6;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    color: rgba(255,255,255,0.9);
    letter-spacing: -0.01em;
}

/* =========================================
   SUBSCRIBE CTA
   ========================================= */
#subscribe { position: relative; border-bottom: none; }
.subscribe-cta .form-large { max-width: 540px; }

/* =========================================
   FOOTER
   ========================================= */
.footer {
    padding: 8rem 0 4rem;
    background: var(--bg-dark);
    position: relative;
    border-top: 1px solid rgba(255,255,255,0.05);
    overflow: hidden;
}
.footer-cta { margin-bottom: 8rem; }
.footer-title {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: #fff;
}
.footer-desc {
    font-size: 1.125rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    max-width: 50ch !important;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.5);
}
.social-links a, .contact-email a {
    color: #fff;
    font-weight: 500;
    transition: opacity 0.2s ease;
}
.social-links a:hover, .contact-email a:hover {
    text-decoration: none;
    opacity: 0.7;
}

/* =========================================
   RESPONSIVE DESIGN
   ========================================= */
@media (max-width: 1200px) {
    .hero-title { font-size: 3rem; }
    .card-front { transform: rotate(0); width: 360px; padding: 2.5rem 2rem;}
    .card-hero-img-wrapper { margin: -2.5rem -2rem 1.5rem -2rem; }
    .card-back { display: none; }
}

@media (max-width: 992px) {
    .section { padding: 5rem 0; }
    .hero { padding: 4rem 0; min-height: auto; }
    .hero-container, .editorial-row {
        grid-template-columns: 1fr;
    }
    .hero-container { gap: 3rem; }
    
    .editorial-row { gap: 1.5rem; padding: 3rem 0; }
    .desc-content-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .card-large-text { font-size: 2.25rem; }
    
    .grid-3, .sectors-grid, .sectors-grid-bottom {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
    
    .subscribe-grid {
        grid-template-columns: 1fr !important;
        padding: 2rem !important;
        gap: 2rem !important;
        text-align: center;
    }
    .subscribe-text { text-align: center !important; }
    
    .footer-title { font-size: 2.5rem; }
}

@media (max-width: 768px) {
    /* Header mobile */
    .header-inner { height: 60px; }
    .logo { height: 28px; }
    .logo span { font-size: 1rem !important; }
    .logo, .logo span { white-space: nowrap; }
    .btn-sm { padding: 0.5rem 1rem; font-size: 0.75rem; }
    #lang-toggle { padding: 0.3rem 0.5rem !important; font-size: 0.7rem !important; }

    .section { padding: 4rem 0; }
    .section-title { font-size: 2rem; }
    .section-label { font-size: 0.7rem; }
    .stats-quote { font-size: 1.2rem; }
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
    }
    .card-front { width: 100%; position: relative; }
    .card-stack { aspect-ratio: auto; }
    
    /* Hero mobile */
    .hero { padding: 3rem 0; min-height: auto; }
    .hero-title { font-size: 2.5rem; margin-bottom: 1.5rem; }
    .hero-subtitle { font-size: 0.95rem !important; }
    .hero-btn-group {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }
    .hero-btn-group .btn {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
    
    /* Subscribe form mobile */
    .subscribe-grid {
        padding: 2rem !important;
        gap: 1.5rem !important;
    }
    .subscribe-input-group {
        flex-direction: column;
        border-radius: 16px;
        padding: 0.75rem;
        gap: 0.5rem;
    }
    .subscribe-input-group #email-input {
        width: 100%;
        text-align: center;
        padding: 0.875rem 1rem !important;
    }
    .subscribe-input-group .btn {
        width: 100%;
        border-radius: 12px !important;
        padding: 0.875rem 1.5rem !important;
    }
    
    /* Footer mobile */
    .footer-title { font-size: 2rem; text-wrap: balance; }
    .footer-desc { font-size: 1rem; }
    
    /* Editorial rows */
    .editorial-row { padding: 2rem 0; gap: 1rem; }
    .desc-content-grid { gap: 1rem; }
    
    /* Step cards */
    .step-num-watermark { font-size: 6rem; }
    .step-title { font-size: 1.2rem; }
    
    /* Sector cards */
    .sector-card { min-height: 280px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 2rem; }
    .section-title { font-size: 1.75rem; }
    .step-num-watermark { font-size: 5rem; }
    .footer-title { font-size: 1.75rem; }
    .card-large-text { font-size: 1.75rem; }
    
    /* Even tighter subscribe */
    .subscribe-grid {
        padding: 1.5rem !important;
    }
}

@keyframes marquee {
    0% { transform: translateX(0%); }
    100% { transform: translateX(-100%); }
}