/* ============================================
   MATERIAL ICONS STYLING
   ============================================ */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ============================================
   TAILWIND CONFIGURATION AS CSS VARIABLES
   ============================================ */
:root {
    --color-primary: #137fec;
    --color-background-light: #f6f7f8;
    --color-background-dark: #101922;
    --color-text-white: #ffffff;
    --color-text-black: #000000;
    --color-text-gray-100: rgba(0, 0, 0, 0.8);
    --color-text-gray-300: rgba(255, 255, 255, 0.8);
    --color-text-gray-500: rgba(255, 255, 255, 0.6);
    --color-border-dark: #233648;
    --color-border-light: rgba(0, 0, 0, 0.1);
    --color-bg-secondary: #192633;
    --color-text-accent: #92adc9;
    
    --border-radius-default: 0.25rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --border-radius-full: 9999px;
    
    --font-family: 'Inter', sans-serif;
}

/* ============================================
   BASE TYPOGRAPHY
   ============================================ */
body {
    font-family: var(--font-family);
    background-color: var(--color-background-light);
}

body.dark {
    background-color: var(--color-background-dark);
}

/* ============================================
   HEADER & NAVIGATION STYLES
   ============================================ */
header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dark header {
    border-bottom-color: var(--color-border-dark);
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-text-white);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--color-primary);
}

.nav-link {
    color: rgba(0, 0, 0, 0.8);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5rem;
    transition: color 0.3s ease;
}

.dark .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

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

.nav-link.active {
    color: var(--color-primary);
    font-weight: 700;
}

/* ============================================
   BUTTON STYLES
   ============================================ */
.btn {
    display: flex;
    min-width: 84px;
    max-width: 480px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.5rem;
    letter-spacing: 0.015em;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
    padding: 0.625rem 1rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-white);
    height: 2.5rem;
}

.btn-primary:hover {
    background-color: rgba(19, 127, 236, 0.9);
}

.btn-primary-large {
    height: 3rem;
    padding: 0 1.5rem;
    font-size: 1rem;
}

.btn-secondary {
    background-color: #10b981;
    color: var(--color-text-white);
    height: 3rem;
    padding: 0 1.5rem;
    font-size: 1rem;
}

.btn-secondary:hover {
    background-color: #059669;
}

.btn-small {
    height: 2rem;
    padding: 0 1rem;
    font-size: 0.875rem;
}

/* ============================================
   CARD & CONTAINER STYLES
   ============================================ */
.card {
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-xl);
    padding: 1.5rem;
}

.dark .card {
    border-color: #324d67;
    background-color: var(--color-bg-secondary);
}

.card-light {
    background-color: white;
}

.dark .card-light {
    background-color: var(--color-bg-secondary);
}

.card-stat {
    min-width: 158px;
    flex: 1;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card-stat-label {
    color: rgba(0, 0, 0, 0.8);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5rem;
}

.dark .card-stat-label {
    color: rgba(255, 255, 255, 0.8);
}

.card-stat-value {
    color: var(--color-text-black);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.25rem;
}

.dark .card-stat-value {
    color: var(--color-text-white);
}

/* ============================================
   FEATURE CARDS
   ============================================ */
.feature-card {
    display: flex;
    flex: 1;
    gap: 1rem;
    border-radius: var(--border-radius-xl);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    flex-direction: column;
    background-color: var(--color-background-light);
}

.dark .feature-card {
    border-color: #324d67;
    background-color: var(--color-bg-secondary);
}

.feature-icon {
    color: var(--color-primary);
}

.feature-title {
    color: var(--color-text-black);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.25rem;
}

.dark .feature-title {
    color: var(--color-text-white);
}

.feature-description {
    color: rgba(0, 0, 0, 0.7);
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5rem;
}

.dark .feature-description {
    color: #92adc9;
}

/* ============================================
   SECTION HEADINGS
   ============================================ */
.section-title {
    color: var(--color-text-black);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.25rem;
    letter-spacing: -0.033em;
    max-width: 720px;
}

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

.section-subtitle {
    color: rgba(0, 0, 0, 0.8);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5rem;
    max-width: 720px;
}

.dark .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   FOOTER STYLES
   ============================================ */
footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: 4rem;
    padding: 2.5rem 1rem;
}

.dark footer {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.footer-title {
    color: var(--color-text-black);
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.dark .footer-title {
    color: var(--color-text-white);
}

.footer-text {
    color: rgba(0, 0, 0, 0.7);
    font-size: 0.875rem;
}

.dark .footer-text {
    color: rgba(255, 255, 255, 0.7);
}

.footer-link {
    color: rgba(0, 0, 0, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.dark .footer-link {
    color: rgba(255, 255, 255, 0.7);
}

.footer-link:hover {
    color: var(--color-primary);
}

/* ============================================
   FORM STYLES
   ============================================ */
.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: var(--border-radius-lg);
    background-color: #f3f4f6;
    border: 1px solid #e5e7eb;
    color: var(--color-text-black);
    font-family: var(--font-family);
    transition: border-color 0.3s ease;
}

.dark .form-input,
.dark .form-textarea {
    background-color: #233648;
    border-color: #334659;
    color: var(--color-text-white);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(19, 127, 236, 0.1);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(0, 0, 0, 0.6);
    margin-bottom: 0.5rem;
}

.dark .form-label {
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   CTA SECTIONS
   ============================================ */
.cta-banner {
    background-color: rgba(19, 127, 236, 0.1);
    border-radius: var(--border-radius-xl);
    padding: 2.5rem 1rem;
}

.dark .cta-banner {
    background-color: rgba(19, 127, 236, 0.2);
}

.cta-title {
    color: var(--color-text-black);
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1.25rem;
    letter-spacing: -0.015em;
}

.dark .cta-title {
    color: var(--color-text-white);
}

.cta-text {
    color: rgba(0, 0, 0, 0.8);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5rem;
    max-width: 720px;
}

.dark .cta-text {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   CONTACT CARD STYLES
   ============================================ */
.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    min-height: 3.5rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--border-radius-lg);
    background-color: transparent;
    justify-content: space-between;
}

.dark .contact-card {
    border-color: var(--color-border-dark);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--border-radius-lg);
    background-color: rgba(19, 127, 236, 0.2);
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-text {
    color: var(--color-text-black);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5rem;
}

.dark .contact-text {
    color: var(--color-text-white);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.opacity-transition {
    transition: opacity 0.3s ease;
}

.color-transition {
    transition: color 0.3s ease;
}

.hero-text-white {
    color: white;
}

.hero-text-white-subtle {
    color: rgba(255, 255, 255, 0.9);
}

.text-gray-light {
    color: rgba(0, 0, 0, 0.6);
}

.dark .text-gray-light {
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   RESPONSIVE TWEAKS
   ============================================ */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.875rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
}