/* =========================================================================
   TURNING POINT MAGAZINE - DESIGN SYSTEM v2
   Inspired by world-class editorial platforms.
   ========================================================================= */

/* --- 1. FONTS --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
    /* --- COLORS --- */
    --tp-crimson: #C90000;         /* Deep, editorial red (The Atlantic style) */
    --tp-crimson-dark: #8B0000;
    --tp-black: #0F0F0F;           /* Off-black for text for softer contrast */
    --tp-black-true: #000000;      /* Pure black for high impact backgrounds */
    --tp-grey-900: #1a1a1a;
    --tp-grey-800: #333333;
    --tp-grey-300: #E0E0E0;
    --tp-grey-100: #F4F4F4;
    --tp-off-white: #FAF9F6;       /* Warm editorial paper background */
    --tp-white: #FFFFFF;
    
    /* --- TYPOGRAPHY --- */
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    
    /* Font Sizes (Fluid Typography) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
    --text-5xl: clamp(3rem, 2.25rem + 3.75vw, 4.5rem);
    
    /* --- SPACING & GRID --- */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
    
    --container-max: 1400px;
    --container-reading: 800px;
    
    /* --- BORDERS & SHADOWS --- */
    --border-thin: 1px solid var(--tp-grey-300);
    --border-thick: 4px solid var(--tp-black);
    --border-accent: 2px solid var(--tp-crimson);
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    
    /* --- TRANSITIONS --- */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.3s ease;
}

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--tp-black);
    background-color: var(--tp-off-white); /* Warm editorial feel */
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* =========================================================================
   3. TYPOGRAPHY CLASSES
   ========================================================================= */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.2;
    color: var(--tp-black);
    margin-bottom: var(--space-4);
}

.heading-display { font-size: var(--text-5xl); letter-spacing: -0.02em; }
.heading-1 { font-size: var(--text-4xl); }
.heading-2 { font-size: var(--text-3xl); }
.heading-3 { font-size: var(--text-2xl); }
.heading-4 { font-size: var(--text-xl); }

.kicker {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    color: var(--tp-crimson);
    display: block;
    margin-bottom: var(--space-2);
}

.subheadline {
    font-family: var(--font-sans);
    font-size: var(--text-lg);
    color: var(--tp-grey-800);
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: var(--space-4);
}

.meta-text {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--tp-grey-800);
}

p {
    margin-bottom: var(--space-4);
}

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

a:hover {
    color: var(--tp-crimson);
}

/* =========================================================================
   4. LAYOUT & CONTAINERS
   ========================================================================= */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
    width: 100%;
}

.reading-container {
    max-width: var(--container-reading);
    margin: 0 auto;
    padding: 0 var(--space-4);
    width: 100%;
}

.section-padding {
    padding: var(--space-16) 0;
}

/* =========================================================================
   5. COMPONENTS
   ========================================================================= */

/* Divider Lines */
.tp-divider {
    border: 0;
    border-top: var(--border-thin);
    margin: var(--space-8) 0;
    width: 100%;
}

.tp-divider-thick {
    border: 0;
    border-top: var(--border-thick);
    margin: var(--space-8) 0;
    width: 100%;
}

.tp-divider-accent {
    border: 0;
    border-top: var(--border-accent);
    margin: var(--space-8) 0;
    width: 60px; /* Small accent line */
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--tp-crimson);
    color: var(--tp-white);
    font-family: var(--font-sans);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: 0; /* Sharp corners for editorial feel */
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}
.btn-primary:hover {
    background-color: var(--tp-crimson-dark);
    color: var(--tp-white);
}

.btn-outline {
    display: inline-block;
    background-color: transparent;
    color: var(--tp-black);
    font-family: var(--font-sans);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border: 1px solid var(--tp-black);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.btn-outline:hover {
    background-color: var(--tp-black);
    color: var(--tp-white);
}

/* Images */
.img-fluid {
    max-width: 100%;
    height: auto;
    display: block;
}

.tp-image-card {
    overflow: hidden;
    position: relative;
}

.tp-image-card img {
    transition: transform var(--transition-base);
}

.tp-image-card:hover img {
    transform: scale(1.05); /* Subtle zoom effect */
}

/* Data-Light Mode specific overrides */
body.data-light-mode img:not(.keep-light) {
    display: none !important;
}
body.data-light-mode .tp-image-card {
    background-color: var(--tp-grey-300);
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}
body.data-light-mode .tp-image-card::after {
    content: "Image Hidden (Data-Light)";
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    color: var(--tp-grey-800);
}