/* ===============
   ROOT VARIABLES
   =============== */
:root {
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-gray: #D9D9D9;
    --font-primary: 'Montserrat', sans-serif;
    --font-heading: 'Helvetica', Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-bold: 700;
    --spacing-small: 10px;
    --spacing-medium: 20px;
    --spacing-large: 30px;
    --spacing-xlarge: 60px;
    --transition-ease: 0.8s ease-out;
    --transition-fast: 0.3s ease;
    --border-radius-small: 4px;
    --border-radius-medium: 15px;
    --border-radius-large: 20px;
}

/* ===============
   TYPOGRAPHY & RESET
   =============== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-white);
    color: var(--color-black);
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    opacity: 1; /* Default to visible */
    transition: opacity 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.fade-out {
    opacity: 0; /* Hidden only when class is present */
}

/* Headings */
.heading,
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-normal);
    letter-spacing: 0.5px;
}

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

/* ===============
   HEADER
   =============== */
/* ===============
   HEADER - Mobile Responsive
   =============== */
header {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-medium) 5%;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(5px);
    transition: background var(--transition-fast);
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-medium);
}

.logo .heading {
    font-size: clamp(12px, 2.5vw, 14px);
    text-align: center;
    line-height: 1.3;
}

.logo-divider {
    width: 100%;
    height: 1px;
    background-color: var(--color-black);
    margin: var(--spacing-small) 0;
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    gap: var(--spacing-small);
}

nav li {
    margin: 0;
}

nav a {
    text-decoration: none;
    color: var(--color-black);
    font-family: var(--font-heading);
    font-weight: var(--font-weight-normal);
    font-size: clamp(11px, 2.5vw, 14px);
    padding: var(--spacing-small) var(--spacing-medium);
    border-radius: var(--border-radius-small);
    transition: all var(--transition-fast);
    position: relative;
}

nav a:hover,
nav a:focus {
    background-color: var(--color-light-gray);
    transform: translateY(-1px);
}

nav a.active {
    background-color: var(--color-black);
    color: var(--color-white);
}



/* ===============
   EXPERTISE SECTION – CARDS ON ALL DEVICES
   =============== */
.expertise-section {
    padding: var(--spacing-large) 5%;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.expertise-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.expertise-section h1 {
    font-size: clamp(1.6rem, 6vw, 2rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xlarge);
    line-height: 1.2;
    position: relative;
    display: inline-block;
}

.expertise-section h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-black);
    margin: var(--spacing-small) auto 0;
    border-radius: 2px;
}

/* Grid: 1 column on mobile, 2 on tablet, 3 on desktop */
.expertise-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-large);
    max-width: 1200px;
    margin: 0 auto;
}

/* 🟩 CARD STYLING – APPLIES ON ALL SCREENS */
.expertise-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius-medium);
    padding: var(--spacing-large);
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-medium);
    box-shadow: 0 2px 6px rgba(0,0,0,0.03);
    /* Ensure no mobile override strips this */
    min-height: auto;
    width: 100%;
    box-sizing: border-box;
}

/* Icon */
.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0,0,0,0.02);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-black);
    stroke-width: 1.8;
    fill: none;
    flex-shrink: 0;
}

.expertise-heading {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: clamp(1.15rem, 4.5vw, 1.35rem);
    margin: 0;
    line-height: 1.3;
    color: var(--color-black);
}

.expertise-points {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.expertise-points li {
    font-size: clamp(0.95rem, 4vw, 1.05rem);
    line-height: 1.5;
    color: #333;
    position: relative;
    padding-left: 24px;
}

.expertise-points li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-black);
    font-weight: bold;
    font-size: 1.2em;
    opacity: 0.8;
}

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

/* Desktop */
@media (min-width: 1024px) {
    .expertise-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
/* On hover (desktop only) */
@media (hover: hover) {
    .expertise-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 6px 16px rgba(0,0,0,0.08);
    }
}

/* Icon Container */
.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0,0,0,0.02);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-black);
    stroke-width: 1.8;
    fill: none;
}

/* Heading */
.expertise-heading {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: clamp(1.15rem, 4.5vw, 1.35rem);
    margin: 0;
    line-height: 1.3;
    color: var(--color-black);
}

/* Points List */
.expertise-points {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.expertise-points li {
    font-size: clamp(0.95rem, 4vw, 1.05rem);
    line-height: 1.5;
    color: #333;
    position: relative;
    padding-left: 24px;
}

.expertise-points li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-black);
    font-weight: var(--font-weight-bold);
    font-size: 1.2em;
    opacity: 0.8;
}

/* ===============
   RESPONSIVE BREAKPOINTS
   =============== */

/* Tablet: 2 columns */
@media (min-width: 768px) {
    .expertise-section {
        padding: var(--spacing-xlarge) 5%;
    }

    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-large);
    }

    .expertise-card {
        padding: var(--spacing-large);
    }
}

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

    .expertise-card {
        padding: var(--spacing-large);
    }

    .expertise-heading {
        font-size: 1.35rem;
    }

    .expertise-points li {
        font-size: 1.05rem;
    }
}
/* =============== 
   FOOTER (Fixed Alignment + Responsive Layout)
   =============== */
footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xlarge) 5%;
    font-size: 14px;
    font-weight: var(--font-weight-light);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-ease), transform var(--transition-ease);
}

footer.visible {
    opacity: 1;
    transform: translateY(0);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-large);
    max-width: 1200px;
    margin: 0 auto;
}

/* Align footer in a clean 3-column grid on desktop */
@media (min-width: 768px) {
    .footer-content {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr; /* 3 equal sections */
        align-items: flex-start;
        text-align: left;
        gap: var(--spacing-large);
    }
}

.quick-links,
.copyright,
.social-icons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-small);
}

@media (min-width: 768px) {
    .quick-links,
    .copyright,
    .social-icons {
        align-items: flex-start; /* Left-align text on larger screens */
    }
}

.quick-links h4,
.social-icons h4 {
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-small);
}

.quick-links ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quick-links a {
    text-decoration: none;
    color: var(--color-white);
    transition: color var(--transition-fast);
}

.quick-links a:hover {
    color: var(--color-gray);
    text-decoration: underline;
}

.copyright {
    text-align: center;
}

@media (min-width: 768px) {
    .copyright {
        text-align: left;
    }
}

.copyright p:first-child {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: 15px;
}

.copyright p {
    margin: 5px 0;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-small);
}

@media (min-width: 768px) {
    .social-links {
        justify-content: flex-start;
    }
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--color-gray);
    color: var(--color-black);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--color-white);
    color: var(--color-black);
    transform: translateY(-2px);
    box-shadow: 0 3px 10px rgba(255, 255, 255, 0.2);
}

.social-link i {
    font-size: 20px;
}