/**
* CSS CONSISTENCY FIX
* Ensures consistent styling across all pages
* Standardizes variables, spacing, typography, and colors
* Advanced-level CSS architecture
*/

/* ====== STANDARDIZED CSS VARIABLES ====== */
:root {
    /* Primary Color System - Consistent across all pages */
    --primary-color: #0d6efd;
    --primary-color-hover: #0b5ed7;
    --primary-color-light: #3d8bfd;
    --primary-color-dark: #0a58ca;

    /* Secondary Color System */
    --secondary-color: #6c757d;
    --secondary-color-hover: #5c636a;

    /* Accent Colors */
    --accent-color: #ff6b6b;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
    --info-color: #17a2b8;

    /* Text Colors - Consistent */
    --text-color: #333;
    --text-color-light: #6c757d;
    --text-color-muted: #999;
    --text-color-inverse: #fff;

    /* Background Colors - Consistent */
    --background-color: #fff;
    --background-secondary: #f9f9f9;
    --background-tertiary: #f5f5f5;

    /* Border Colors - Consistent */
    --border-color: #e0e0e0;
    --border-color-light: #f0f0f0;
    --border-color-dark: #ccc;

    /* Spacing System - Consistent scale */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-2xl: 3rem;      /* 48px */
    --spacing-3xl: 4rem;      /* 64px */

    /* Typography - Consistent */
    --font-family-base: 'PT Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --font-family-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --font-family-mono: 'Consolas', 'Monaco', 'Courier New', monospace;

    --font-size-xs: 0.75rem;   /* 12px */
    --font-size-sm: 0.875rem;  /* 14px */
    --font-size-base: 1rem;    /* 16px */
    --font-size-lg: 1.125rem;  /* 18px */
    --font-size-xl: 1.25rem;   /* 20px */
    --font-size-2xl: 1.5rem;   /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem;  /* 36px */

    /* Layout - Consistent */
    --container-max-width: 1200px;
    --section-padding: 80px 20px;
    --card-padding: 25px;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;

    /* Shadows - Consistent */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Transitions - Consistent */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-all: all 0.3s ease;

    /* Z-Index - Consistent scale */
    --z-base: 1;
    --z-dropdown: 50;
    --z-overlay: 100;
    --z-fixed: 900;
    --z-popup: 1000;
    --z-modal: 1050;
    --z-tooltip: 1100;
}

/* ====== CONSISTENT BASE STYLES ====== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
}

/* ====== CONSISTENT CONTAINER ====== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ====== CONSISTENT BUTTONS ====== */
.btn,
button[type="button"],
button[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-all);
    pointer-events: auto !important;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-color-inverse);
}

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

/* ====== CONSISTENT CARDS ====== */
.card,
.project-card,
.service-card {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--card-padding);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-all);
}

.card:hover,
.project-card:hover,
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ====== CONSISTENT SECTIONS ====== */
section {
    padding: var(--section-padding);
    width: 100%;
    display: block;
    visibility: visible;
    opacity: 1;
}

/* ====== CONSISTENT NAVIGATION ====== */
.navbar,
nav {
    position: relative;
    z-index: var(--z-fixed);
    pointer-events: auto !important;
}

.nav-link,
.navbar a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition-all);
    pointer-events: auto !important;
    cursor: pointer !important;
}

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

.nav-link.active,
.navbar a.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* ====== CONSISTENT FORMS ====== */
input,
textarea,
select {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-all);
    width: 100%;
}

input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-color: var(--primary-color);
}

/* ====== CONSISTENT TYPOGRAPHY ====== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

/* ====== CONSISTENT LINKS ====== */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-all);
    pointer-events: auto !important;
    cursor: pointer !important;
}

a:hover {
    color: var(--primary-color-hover);
    text-decoration: underline;
}

/* ====== CONSISTENT RESPONSIVE ====== */
@media (max-width: 768px) {
    :root {
    }

    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ====== CONSISTENT ANIMATIONS ====== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

/* ====== CONSISTENT UTILITIES ====== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }