/* ========================================
   Fecode OY - Mobile-First Responsive Styles
   Color Palette: Black (#000), White (#FFF), Yellow (#FFD700)
   ======================================== */

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
    /* Colors */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-yellow: #FFD700;
    --color-yellow-dark: #FFA500;
    --color-gray-light: #F5F5F5;
    --color-gray-medium: #E0E0E0;
    --color-gray-dark: #333333;

    /* Typography Scale */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 1rem; /* 16px */
    --font-size-sm: 0.875rem; /* 14px */
    --font-size-lg: 1.125rem; /* 18px */
    --font-size-xl: 1.25rem; /* 20px */
    --font-size-2xl: 1.5rem; /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem; /* 36px */
    --font-size-5xl: 3rem; /* 48px */

    /* Spacing Scale */
    --spacing-xs: 0.5rem; /* 8px */
    --spacing-sm: 0.75rem; /* 12px */
    --spacing-md: 1rem; /* 16px */
    --spacing-lg: 1.5rem; /* 24px */
    --spacing-xl: 2rem; /* 32px */
    --spacing-2xl: 3rem; /* 48px */
    --spacing-3xl: 4rem; /* 64px */
    --spacing-4xl: 6rem; /* 96px */

    /* Layout */
    --container-max-width: 1200px;
    --container-padding: var(--spacing-md);
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-easing: ease-in-out;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

/* ========================================
   CSS Reset & Base Styles
   ======================================== */
*, *::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-family-base);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* Improve text rendering */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    color: var(--color-black);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-yellow-dark);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-easing);
}

a:hover, a:focus {
    color: var(--color-yellow);
}

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

/* Accessibility - Focus styles */
a:focus, button:focus, input:focus, textarea:focus {
    outline: 2px solid var(--color-yellow);
    outline-offset: 2px;
}

/* Remove list styles */
ul[role="list"] {
    list-style: none;
}

/* ========================================
   Layout Components
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Tablet breakpoint - increase padding */
@media (min-width: 48rem) { /* 768px */
    :root {
        --container-padding: var(--spacing-xl);
    }
}

/* Desktop breakpoint - larger font sizes */
@media (min-width: 64rem) { /* 1024px */
    :root {
        --font-size-base: 1.125rem;
        --font-size-3xl: 2.25rem;
        --font-size-4xl: 3rem;
        --font-size-5xl: 3.75rem;
    }
}

/* ========================================
   Header & Navigation (Mobile-First)
   ======================================== */
.header {
    background-color: var(--color-white);
    border-bottom: 2px solid var(--color-yellow);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-black);
}

.logo {
    width: 40px;
    height: 48px;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 900;
    letter-spacing: 0.05em;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger {
    width: 25px;
    height: 3px;
    background-color: var(--color-black);
    transition: all var(--transition-speed) var(--transition-easing);
}

.nav-toggle:hover .hamburger {
    background-color: var(--color-yellow-dark);
}

/* Mobile Menu (Hidden by default) */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--color-black);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-4xl) var(--spacing-xl) var(--spacing-xl);
    gap: var(--spacing-lg);
    transition: right var(--transition-speed) var(--transition-easing);
    box-shadow: var(--shadow-xl);
}

.nav-menu.active {
    right: 0;
}

.nav-link {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-speed) var(--transition-easing);
}

.nav-link:hover, .nav-link:focus {
    color: var(--color-yellow);
    border-bottom-color: var(--color-yellow);
}

/* Tablet Navigation (768px+) */
@media (min-width: 48rem) {
    .nav-toggle {
        display: none;
    }

    .nav-menu {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        background-color: transparent;
        flex-direction: row;
        padding: 0;
        gap: var(--spacing-xl);
        box-shadow: none;
    }

    .nav-link {
        color: var(--color-black);
        font-size: var(--font-size-base);
    }

    .logo {
        width: 50px;
        height: 60px;
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

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

.hero-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.hero-title-small {
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--color-gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-title-main {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    color: var(--color-white);
    letter-spacing: 0.05em;
}

.hero-title-accent {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-yellow);
    font-style: italic;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-medium);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo {
    width: 100%;
    max-width: 250px;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.3));
}

/* Tablet Hero (768px+) */
@media (min-width: 48rem) {
    .hero-container {
        grid-template-columns: 1fr 1fr;
    }

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

    .hero-cta {
        flex-direction: row;
        justify-content: flex-start;
    }

    .hero-description {
        margin-left: 0;
    }

    .hero-logo {
        max-width: 300px;
    }
}

/* Desktop Hero (1024px+) */
@media (min-width: 64rem) {
    .hero {
        min-height: 90vh;
    }

    .hero-title-main {
        font-size: var(--font-size-5xl);
    }

    .hero-logo {
        max-width: 400px;
    }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-easing);
    min-width: 160px;
    /* Ensure touch-friendly size (min 44x44px) */
    min-height: 44px;
}

.btn-primary {
    background-color: var(--color-yellow);
    color: var(--color-black);
    border-color: var(--color-yellow);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--color-yellow-dark);
    border-color: var(--color-yellow-dark);
    color: var(--color-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover, .btn-secondary:focus {
    background-color: var(--color-white);
    color: var(--color-black);
}

.btn-full {
    width: 100%;
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    text-align: center;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-2xl);
}

/* ========================================
   Values Section
   ======================================== */
.values {
    background-color: var(--color-gray-light);
}

.values-grid {
    display: grid;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.value-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 2px solid var(--color-gray-medium);
    transition: all var(--transition-speed) var(--transition-easing);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-yellow);
}

.value-card-featured {
    border-color: var(--color-yellow);
    background: linear-gradient(135deg, var(--color-white) 0%, #FFFEF5 100%);
}

.value-icon {
    margin: 0 auto var(--spacing-lg);
    width: 80px;
    height: 80px;
}

.value-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.value-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-dark);
    line-height: 1.7;
}

/* Tablet Values (768px+) */
@media (min-width: 48rem) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .value-card-featured {
        grid-column: span 2;
    }
}

/* Desktop Values (1024px+) */
@media (min-width: 64rem) {
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .value-card-featured {
        grid-column: auto;
    }
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.service-item {
    padding: var(--spacing-xl);
    border-left: 4px solid var(--color-yellow);
    background-color: var(--color-gray-light);
    transition: all var(--transition-speed) var(--transition-easing);
}

.service-item:hover {
    background-color: var(--color-white);
    border-left-width: 8px;
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.service-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
}

.service-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-dark);
    margin-bottom: 0;
}

/* Tablet Services (768px+) */
@media (min-width: 48rem) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop Services (1024px+) */
@media (min-width: 64rem) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   About Section
   ======================================== */
.about {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-dark) 100%);
    color: var(--color-white);
}

.about-container {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

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

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

.about-text {
    font-size: var(--font-size-lg);
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-lg);
}

.about-text strong {
    color: var(--color-yellow);
}

.about-logos {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-logos img {
    filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.3));
}

/* Tablet About (768px+) */
@media (min-width: 48rem) {
    .about-container {
        grid-template-columns: 2fr 1fr;
    }

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

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background-color: var(--color-gray-light);
}

.contact-grid {
    display: grid;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.contact-info {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--color-yellow);
}

.contact-info-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    color: var(--color-black);
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-medium);
}

.contact-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-value {
    font-size: var(--font-size-lg);
    color: var(--color-black);
}

.contact-link {
    color: var(--color-yellow-dark);
    font-weight: 600;
}

.contact-cta {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
}

.contact-cta-text {
    font-size: var(--font-size-base);
    color: var(--color-gray-dark);
    line-height: 1.7;
}

/* Contact Form */
.contact-form {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.form-input, .form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family-base);
    border: 2px solid var(--color-gray-medium);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-speed) var(--transition-easing);
    /* Ensure touch-friendly size */
    min-height: 44px;
}

.form-input:focus, .form-textarea:focus {
    border-color: var(--color-yellow);
}

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

/* Tablet Contact (768px+) */
@media (min-width: 48rem) {
    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
    }
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    gap: var(--spacing-2xl);
}

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

.footer-logo img {
    margin: 0 auto var(--spacing-md);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-yellow);
    font-style: italic;
}

.footer-heading {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-yellow);
}

.footer-menu {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    color: var(--color-gray-medium);
    font-size: var(--font-size-base);
    transition: color var(--transition-speed) var(--transition-easing);
}

.footer-link:hover, .footer-link:focus {
    color: var(--color-yellow);
}

.footer-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-dark);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray-medium);
    margin-bottom: 0;
}

/* Tablet Footer (768px+) */
@media (min-width: 48rem) {
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .footer-logo img {
        margin-left: 0;
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .header, .footer, .nav-toggle, .hero-cta, .contact-form {
        display: none;
    }

    body {
        color: var(--color-black);
        background: var(--color-white);
    }

    a {
        text-decoration: underline;
    }

    section {
        page-break-inside: avoid;
    }
}

/* ========================================
   Reduced Motion Support (Accessibility)
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}