/* 
 * Nexus Finance Capital - Design System 
 */

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

/* --- Constants & Variables --- */
@property --num {
    syntax: "<integer>";
    initial-value: 0;
    inherits: false;
}

:root {
    /* Colors */
    --color-bg-primary: #0a192f;
    --color-bg-secondary: #112240;
    --color-bg-tertiary: #233554;
    --color-text-primary: #e6f1ff;
    --color-text-secondary: #8892b0;
    --color-text-accent: #64ffda;
    --color-accent-blue: #00d4ff;

    /* Layout */
    --nav-height: 90px;
    --container-width: 1200px;

    /* Effects */
    --glass-bg: rgba(17, 34, 64, 0.75);
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
    --glass-blur: blur(12px);
    --shadow-card: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
    --shadow-hover: 0 20px 30px -15px rgba(2, 12, 27, 0.7);

    /* Transitions */
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

/* --- Typography --- */
h1,
h2,
h3,
h4 {
    color: var(--color-text-primary);
    font-weight: 700;
    line-height: 1.1;
}

h1 {
    font-size: clamp(40px, 8vw, 70px);
    letter-spacing: -1px;
}

h2 {
    font-size: clamp(28px, 5vw, 42px);
    margin-bottom: 20px;
}

h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

p {
    color: var(--color-text-secondary);
    margin-bottom: 15px;
}

.text-accent {
    color: var(--color-accent-blue);
}

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

/* --- Mixins & Utilities --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    border: 1px solid var(--color-accent-blue);
    border-radius: 4px;
    color: var(--color-accent-blue);
    font-family: 'Inter', sans-serif;
    /* Explicitly set font */
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-3px);
}

.btn-primary {
    background: var(--color-accent-blue);
    color: var(--color-bg-primary);
    font-weight: 700;
}

.btn-primary:hover {
    background: #64ffda;
    color: var(--color-bg-primary);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 16px;
}

/* --- Header & Nav --- */
header {
    height: var(--nav-height);
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: var(--glass-blur);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: var(--glass-border);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo img {
    height: 70px;
    width: auto;
    filter: invert(1) hue-rotate(180deg);
    mix-blend-mode: screen;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-size: 14px;
    color: var(--color-text-primary);
    position: relative;
}

.nav-link:hover {
    color: var(--color-accent-blue);
}

.nav-link::after {
    content: '';
    display: block;
    width: 0;
    height: 1px;
    background: var(--color-accent-blue);
    transition: width 0.3s;
    margin-top: 4px;
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu Hidden by default */
.nav-toggle,
.nav-toggle-label {
    display: none;
}

/* --- Hero Section --- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, #0d1f3a 100%);
    overflow: hidden;
}

/* Abstract Background Glow */
.hero-bg {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, rgba(10, 25, 47, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.hero-container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
}

.hero-label {
    font-family: monospace;
    color: var(--color-accent-blue);
    margin-bottom: 20px;
    font-size: 16px;
}

.hero-sub {
    font-size: 20px;
    max-width: 600px;
    margin-top: 20px;
    margin-bottom: 40px;
}

/* --- Metrics Section --- */
.metrics-section {
    padding: 60px 0;
    background: var(--color-bg-secondary);
    border-top: var(--glass-border);
    border-bottom: var(--glass-border);
    position: relative;
    z-index: 2;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.metric-value-wrapper {
    display: flex;
    align-items: baseline;
    font-size: 40px;
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1;
    margin-bottom: 5px;
}

.suffix,
.prefix {
    font-size: 40px;
    color: var(--color-accent-blue);
}

.counter {
    counter-reset: num var(--num);
    animation: countUp 2.5s ease-out forwards;
    font-variant-numeric: tabular-nums;
}

.counter::after {
    content: counter(num);
}

@keyframes countUp {
    from {
        --num: 0;
    }

    to {
        --num: var(--num-end);
    }
}

.metric-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    font-family: monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Services Section --- */
.services-section {
    background: var(--color-bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: var(--color-bg-secondary);
    padding: 40px 30px;
    border-radius: 4px;
    transition: var(--transition);
    border: 1px solid transparent;
    /* Prepare for border transition */
    height: 100%;
    /* Glassmorphism subtle */
    backdrop-filter: blur(5px);
}

.service-card:hover {
    transform: translateY(-10px);
    border: 1px solid var(--color-accent-blue);
    box-shadow: 0 20px 40px -20px rgba(0, 212, 255, 0.15);
}

.card-icon {
    color: var(--color-accent-blue);
    margin-bottom: 25px;
    display: inline-block;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

/* --- Legacy Section --- */
.legacy-section {
    background: var(--color-bg-secondary);
    position: relative;
}

.legacy-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.legacy-intro h2 {
    margin-bottom: 30px;
}

.legacy-text {
    font-size: 18px;
    line-height: 1.7;
}

.legacy-blocks {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.legacy-card {
    padding: 30px;
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid var(--color-accent-blue);
    border-radius: 0 4px 4px 0;
}

.legacy-card h4 {
    color: var(--color-accent-blue);
    margin-bottom: 10px;
    font-size: 18px;
}

.legacy-card p {
    margin-bottom: 0;
    font-size: 15px;
}

/* --- Trust Section --- */
.trust-section {
    padding: 60px 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid #1c2d4a;
}

.trust-heading {
    text-align: center;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 40px;
    font-size: 14px;
}

.partners-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 50px;
    opacity: 0.6;
}

.partner-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-secondary);
    filter: grayscale(100%);
    transition: var(--transition);
    /* Placeholder visuals */
    border: 1px dashed rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: 4px;
}

.partner-logo:hover {
    filter: grayscale(0%);
    color: var(--color-text-primary);
    border-color: var(--color-accent-blue);
}

/* --- Footer --- */
footer {
    background: #020c1b;
    padding: 60px 0 40px;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-brand {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    display: block;
}

.footer-sub {
    color: var(--color-accent-blue);
    font-size: 14px;
    letter-spacing: 1px;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 16px;
    color: var(--color-text-primary);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a:hover {
    color: var(--color-accent-blue);
}

.newsletter-form {
    display: flex;
    gap: 10px;
}

.newsletter-form input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 15px;
    color: #fff;
    border-radius: 4px;
    flex: 1;
    font-family: inherit;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-accent-blue);
}

/* --- Animations --- */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s cubic-bezier(0.645, 0.045, 0.355, 1) forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Responsive Media Queries --- */
@media (max-width: 900px) {
    .legacy-layout {
        grid-template-columns: 1fr;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    h1 {
        font-size: 50px;
    }
}

@media (max-width: 768px) {

    /* Mobile Nav */
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 70%;
        max-width: 300px;
        background: #112240;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-toggle-label {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        cursor: pointer;
        z-index: 1001;
    }

    .nav-toggle-label span,
    .nav-toggle-label span::before,
    .nav-toggle-label span::after {
        display: block;
        background: var(--color-accent-blue);
        height: 2px;
        width: 24px;
        position: relative;
        transition: 0.3s;
    }

    .nav-toggle-label span::before {
        content: '';
        position: absolute;
        top: -8px;
    }

    .nav-toggle-label span::after {
        content: '';
        position: absolute;
        bottom: -8px;
    }

    #nav-toggle:checked~nav .nav-links {
        transform: translateX(0);
    }

    /* Metrics Mobile */
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .metric-value-wrapper {
        font-size: 32px;
    }
}