/* =====================================================
   CENTRAL HOSPITAL - Main Stylesheet
   Design System & Base Styles
   ===================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* =====================================================
   CSS Variables - Design Tokens
   ===================================================== */
:root {
    /* Professional Light Blue Theme */
    --primary-blue: #4A90E2;
    --primary-blue-dark: #3A7BC8;
    --primary-blue-light: #E8F4FD;
    --primary-green: #4CAF50;
    --primary-green-light: #81C784;
    --primary-green-dark: #388E3C;

    /* Logo Green - Keep Original */
    --logo-green: #22C55E;
    --logo-green-dark: #16A34A;

    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #F8FAFC;
    --light-grey: #F1F5F9;
    --grey: #94A3B8;
    --dark-grey: #64748B;
    --text-dark: #1E293B;
    --text-light: #475569;

    /* Accent Colors */
    --accent-red: #EF4444;
    --accent-orange: #F97316;
    --accent-yellow: #EAB308;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Spacing */
    --container-max: 1280px;
    --container-padding: 1.5rem;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul,
ol {
    list-style: none;
}

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

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* =====================================================
   Typography
   ===================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.text-primary {
    color: var(--primary-blue);
}

.text-green {
    color: var(--primary-green);
}

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

.text-grey {
    color: var(--grey);
}

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

.section {
    padding: 5rem 0;
}

.section-sm {
    padding: 3rem 0;
}

.section-lg {
    padding: 7rem 0;
}

.section-grey {
    background-color: var(--light-grey);
}

.section-blue {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.gap-3 {
    gap: 1.5rem;
}

.gap-4 {
    gap: 2rem;
}

/* Grid Utilities */
.grid {
    display: grid;
}

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

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

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

/* Text Alignment */
.text-center {
    text-align: center;
}

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

.text-right {
    text-align: right;
}

/* Margin & Padding Utilities */
.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

/* =====================================================
   Section Headers
   ===================================================== */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header .subtitle {
    display: inline-block;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-light);
}

/* =====================================================
   Responsive Breakpoints
   ===================================================== */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .hide-mobile {
        display: none !important;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
}