/*
 * Tevin Medley - Executive Landing Page
 * Modern, minimalist design with navy + forest green palette
 */

/* ================================== */
/*          CSS Variables             */
/* ================================== */

:root {
    /* Color Palette */
    --color-navy: #1a365d;
    --color-navy-dark: #0f1f33;
    --color-navy-light: #2c5282;
    --color-forest: #2d5a27;
    --color-forest-light: #38a169;
    --color-warm-white: #e8e8e6;
    --color-off-white: #ddddd9;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-500: #6b7280;
    --color-gray-700: #374151;
    --color-gray-900: #1f2937;

    /* Semantic Colors */
    --color-bg: var(--color-warm-white);
    --color-bg-alt: var(--color-off-white);
    --color-text: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-500);
    --color-accent: var(--color-forest);
    --color-accent-hover: var(--color-forest-light);
    --color-heading: var(--color-navy);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 20px;
    --font-size-sm: 0.9rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.35rem;
    --font-size-2xl: 1.65rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.75rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* ================================== */
/*          Reset & Base              */
/* ================================== */

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-accent-hover);
}

/* ================================== */
/*          Typography                */
/* ================================== */

h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-heading);
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

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

/* ================================== */
/*          Layout                    */
/* ================================== */

.container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

section {
    padding: var(--spacing-3xl) 0;
}

/* ================================== */
/*          Navigation                */
/* ================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(232, 232, 230, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-navy);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--color-navy);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-links a {
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: var(--font-size-sm);
    text-decoration: none;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

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

.nav-links a:hover {
    color: var(--color-navy);
}

.nav-cta {
    background: var(--color-forest);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: 6px;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--color-forest-light);
    color: white !important;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-navy);
    transition: var(--transition-base);
}

/* ================================== */
/*          Buttons                   */
/* ================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--color-forest-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ================================== */
/*          Hero Section              */
/* ================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--color-warm-white) 0%, var(--color-off-white) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.hero-text h1 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-navy);
}

.hero-title {
    font-size: var(--font-size-2xl);
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.hero-role {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
}

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

.hero-image img {
    max-width: 400px;
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

/* ================================== */
/*          Section Titles            */
/* ================================== */

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin: var(--spacing-sm) auto 0;
}

/* ================================== */
/*          Impact Section            */
/* ================================== */

.impact-section {
    background: var(--color-navy);
    color: white;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.impact-item {
    text-align: center;
    padding: var(--spacing-md);
}

.impact-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-forest-light);
    line-height: 1;
}

.impact-label {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-top: var(--spacing-xs);
    color: white;
}

.impact-desc {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
    margin-top: var(--spacing-xs);
}

.impact-statement {
    text-align: center;
    font-size: var(--font-size-lg);
    max-width: var(--container-narrow);
    margin: 0 auto;
    color: var(--color-gray-200);
    line-height: 1.8;
}

/* ================================== */
/*          Philosophy Section        */
/* ================================== */

.philosophy-section {
    background: var(--color-bg);
}

.philosophy-section .section-title {
    color: var(--color-navy);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: var(--container-max);
    margin: 0 auto;
}

.philosophy-item {
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 3px solid var(--color-gray-200);
    transition: border-color var(--transition-base);
}

.philosophy-item:hover {
    border-left-color: var(--color-accent);
}

.philosophy-marker {
    color: var(--color-accent);
    font-size: var(--font-size-sm);
    margin-right: var(--spacing-xs);
}

.philosophy-item h3 {
    display: inline;
    font-size: var(--font-size-lg);
    color: var(--color-navy);
}

.philosophy-item p {
    margin-top: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    margin-bottom: 0;
}

/* ================================== */
/*          Expertise Section         */
/* ================================== */

.expertise-section {
    background: var(--color-off-white);
}

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

.expertise-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.expertise-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--color-accent);
}

.expertise-card h3 {
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.expertise-card p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* ================================== */
/*          Experience Section        */
/* ================================== */

.experience-section {
    background: var(--color-navy);
    color: white;
}

.experience-section .section-title {
    color: white;
}

.experience-section .section-title::after {
    background: var(--color-forest-light);
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.experience-item {
    padding: var(--spacing-lg);
    background: var(--color-navy-dark);
    border-radius: 8px;
    border-left: 3px solid var(--color-forest-light);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.experience-item h3 {
    color: white;
    font-size: var(--font-size-lg);
    margin: 0;
}

.experience-date {
    color: var(--color-forest-light);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
}

.experience-item p {
    color: var(--color-gray-300);
    margin-bottom: 0;
    font-size: var(--font-size-base);
}

.experience-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
    margin-bottom: 0;
}

.experience-cta a {
    color: var(--color-forest-light);
    font-weight: 500;
}

.experience-cta a:hover {
    color: white;
}

/* ================================== */
/*          Clients Section           */
/* ================================== */

.clients-section {
    background: var(--color-bg);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    max-width: var(--container-max);
    margin: 0 auto;
}

.client-category h4 {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.client-category ul {
    list-style: none;
}

.client-category li {
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--color-gray-100);
}

.client-category li:last-child {
    border-bottom: none;
}

/* ================================== */
/*          Initiatives Section       */
/* ================================== */

.initiatives-section {
    background: var(--color-off-white);
}

.initiatives-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.initiative-item {
    padding: var(--spacing-lg);
    background: white;
    border-radius: 12px;
    border: 1px solid var(--color-gray-200);
}

.initiative-item h3 {
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.initiative-item p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* ================================== */
/*          Credentials Section       */
/* ================================== */

.credentials-section {
    background: var(--color-bg);
}

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.credential-item {
    text-align: center;
    padding: var(--spacing-md);
}

.credential-type {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.credential-item p {
    color: var(--color-text);
    font-size: var(--font-size-base);
    margin-bottom: 0;
    line-height: 1.5;
}

.credential-org {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ================================== */
/*          Contact Section           */
/* ================================== */

.contact-section {
    background: var(--color-navy);
    color: white;
}

.contact-section .section-title {
    color: white;
}

.contact-section .section-title::after {
    background: var(--color-forest-light);
}

.contact-intro {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-2xl);
    max-width: var(--container-narrow);
    margin-left: auto;
    margin-right: auto;
}

/* Contact Links */
.contact-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto;
}

.contact-link,
.contact-location {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 8px;
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    width: 100%;
    justify-content: center;
}

.contact-link {
    background: var(--color-navy-light);
    color: white;
    text-decoration: none;
}

.contact-link:hover {
    background: var(--color-forest);
    color: white;
    transform: translateY(-2px);
}

.contact-location {
    color: var(--color-gray-300);
}

.contact-icon {
    font-size: var(--font-size-xl);
    width: 28px;
    text-align: center;
    font-weight: 700;
}

.contact-text {
    font-weight: 500;
}

/* ================================== */
/*          Footer                    */
/* ================================== */

.site-footer {
    background: var(--color-navy-dark);
    color: var(--color-gray-300);
    text-align: center;
    padding: var(--spacing-lg) 0;
    font-size: var(--font-size-sm);
}

/* ================================== */
/*          Animations                */
/* ================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* ================================== */
/*          Media Queries             */
/* ================================== */

/* Tablet */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-text {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .expertise-grid {
        grid-template-columns: 1fr;
    }

    .experience-grid {
        grid-template-columns: 1fr;
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        text-align: center;
    }

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-3xl) 0 var(--spacing-xl);
    }

    .hero-content {
        padding: var(--spacing-md);
    }

    .hero-image img {
        max-width: 280px;
    }

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

    .philosophy-grid {
        grid-template-columns: 1fr;
    }

    .clients-grid {
        grid-template-columns: 1fr;
    }

    .initiatives-grid {
        grid-template-columns: 1fr;
    }

    .credentials-grid {
        grid-template-columns: 1fr;
    }

    section {
        padding: var(--spacing-2xl) 0;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --font-size-base: 16px;
    }

    .impact-grid {
        grid-template-columns: 1fr;
    }

    .nav-container {
        padding: var(--spacing-sm);
    }
}

/* ================================== */
/*          Accessibility             */
/* ================================== */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--color-navy);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 9999;
}

.skip-link:focus {
    top: 0;
}