/* ============================================
   DESIGN SYSTEM — Industrial Corporate Theme
   Inspired by LecosFlow.com
   ============================================ */

/* Google Fonts: Montserrat */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

/* --- CSS Custom Properties --- */
:root {
    /* Brand Colors — LTP / LecosFlow palette */
    --color-accent: #00a9e3;           /* Primary accent — electric blue */
    --color-accent-hover: #0090c5;
    --color-accent-light: #33bde9;
    --color-navy: #181C2F;             /* Main dark background */
    --color-navy-light: #222844;
    --color-navy-muted: #2d3350;
    --color-dark-blue: #003057;
    --color-dark-blue-hover: #002244;
    --color-medium-blue: #004B87;

    /* Legacy (kept for backward compat) */
    --color-primary-red: #00a9e3;
    --color-primary-red-hover: #0090c5;
    --color-primary-red-light: #33bde9;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-off-white: #F4F6F8;
    --color-light-gray: #EAEDF1;
    --color-border-gray: #DEE2E6;
    --color-mid-gray: #ABADB8;
    --color-text-muted: #6B7280;
    --color-text-body: #2C2F3A;
    --color-text-dark: #181C2F;
    --color-black: #000000;

    /* Typography */
    --font-primary: 'Montserrat', 'Inter', system-ui, -apple-system, sans-serif;
    --font-secondary: 'Inter', system-ui, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Font Sizes */
    --text-xs: 0.75rem;     /* 12px */
    --text-sm: 0.875rem;    /* 14px */
    --text-base: 1rem;      /* 16px */
    --text-lg: 1.125rem;    /* 18px */
    --text-xl: 1.25rem;     /* 20px */
    --text-2xl: 1.5rem;     /* 24px */
    --text-3xl: 1.875rem;   /* 30px */
    --text-4xl: 2.25rem;    /* 36px */
    --text-5xl: 3rem;       /* 48px */
    --text-6xl: 3.75rem;    /* 60px */

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Layout */
    --container-max: 1280px;
    --container-narrow: 960px;
    --header-height: 80px;
    --top-bar-height: 40px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
    --shadow-card-hover: 0 12px 35px rgba(0, 0, 0, 0.18);

    /* Borders */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-smooth: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-regular);
    color: var(--color-text-body);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--color-text-dark);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.text-red { color: var(--color-primary-red); }
.text-white { color: var(--color-white); }
.text-dark { color: var(--color-text-dark); }
.text-muted { color: var(--color-text-muted); }
.text-blue { color: var(--color-dark-blue); }

/* --- Container --- */
.mo-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 12px 28px;
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    line-height: 1.4;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 169, 227, 0.35);
}

.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255,255,255,0.6);
}

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

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

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

.btn-arrow {
    background: transparent;
    color: var(--color-white);
    padding: 8px 0;
    border: none;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: var(--font-weight-semibold);
    position: relative;
}

.btn-arrow::after {
    content: '→';
    margin-left: 8px;
    transition: transform var(--transition-fast);
    display: inline-block;
}

.btn-arrow:hover::after {
    transform: translateX(4px);
}

.btn-arrow-accent {
    color: var(--color-accent);
}

.btn-arrow-accent::after {
    content: '→';
    color: var(--color-accent);
}

/* --- Section Spacing --- */
.section {
    padding: var(--space-4xl) 0;
}

.section-sm {
    padding: var(--space-3xl) 0;
}

.section-lg {
    padding: var(--space-5xl) 0;
}

/* --- Section Titles --- */
.section-title {
    margin-bottom: var(--space-md);
}

.section-title span.highlight {
    color: var(--color-primary-red);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--color-text-body);
    line-height: 1.6;
    max-width: 700px;
}

.section-description strong {
    font-weight: var(--font-weight-bold);
}

/* --- Cards --- */
.card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
    height: 100%;
}

.card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}

.card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.card-img-wrapper {
    overflow: hidden;
    position: relative;
}

.card-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-title {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-sm);
    color: var(--color-text-dark);
}

.card-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
}

.card-cta {
    margin-top: var(--space-md);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-red);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

.card-cta::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.card:hover .card-cta {
    gap: 10px;
}

/* --- Grid --- */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

/* --- Utility Classes --- */
.d-flex { display: flex; }
.d-grid { display: grid; }
.d-block { display: block; }
.d-none { display: none; }
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.w-100 { width: 100%; }
.h-100 { height: 100%; }
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.overflow-hidden { overflow: hidden; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.pt-0 { padding-top: 0; }

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* --- Responsive --- */
@media (max-width: 1200px) {
    .grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 991px) {
    h1 { font-size: var(--text-4xl); }
    h2 { font-size: var(--text-3xl); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-5 { grid-template-columns: repeat(2, 1fr); }
    .section { padding: var(--space-3xl) 0; }
}

@media (max-width: 767px) {
    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    h3 { font-size: var(--text-xl); }
    .mo-container { padding: 0 var(--space-md); }
    .grid-2, .grid-3, .grid-4, .grid-5 {
        grid-template-columns: 1fr;
    }
    .section { padding: var(--space-2xl) 0; }
    .d-mobile-none { display: none; }
    .d-mobile-block { display: block; }
}