/* ============================================
   Font Face Definitions
   ============================================ */

@font-face {
    font-family: 'inter';
    src: url('../fonts/inter.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
}

@font-face {
    font-family: 'inter-bold';
    src: url('../fonts/Inter-SemiBold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('../fonts/Roboto_Condensed-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('../fonts/Roboto_Condensed-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('../fonts/Roboto_Condensed-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('../fonts/Roboto_Condensed-SemiBold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('../fonts/Roboto-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
}

/* ============================================
   Global CSS Variables & Design System
   ============================================ */

:root {
    /* ========== Color Palette ========== */
    /* Primary Colors */
    --color-primary: #2571E2;
    --color-primary-light: #00D2FF;
    --color-primary-dark: #3A7BD5;
    --color-primary-gradient: linear-gradient(90deg, #00D2FF 0%, #3A7BD5 100%);

    /* Secondary Colors */
    --color-secondary: #6C63FF;
    --color-secondary-light: #8B85FF;
    --color-secondary-dark: #4D44CC;

    /* Accent Colors */
    --color-accent-purple: #A855F7;
    --color-accent-pink: #EC4899;
    --color-accent-orange: #F97316;
    --color-accent-green: #10B981;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray: #999999;
    --color-black: #000000;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-dark: #0F0F0F;
    --bg-dark-secondary: #1A1A1A;
    --bg-gradient-dark: linear-gradient(180deg, #000000 0%, #1A1A1A 100%);
    --bg-gradient-light: linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 100%);

    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-tertiary: #9CA3AF;
    --text-inverse: #FFFFFF;

    /* ========== Typography ========== */
    /* Font Families */
    --font-primary: 'Roboto';
    --font-heading: 'Roboto';

    /* Font Sizes */
    --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 */
    --font-size-5xl: 3rem;
    /* 48px */
    --font-size-6xl: 3.75rem;
    /* 60px */
    --font-size-7xl: 4.5rem;
    /* 72px */

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* ========== Spacing ========== */
    --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 */
    --spacing-4xl: 6rem;
    /* 96px */
    --spacing-5xl: 8rem;
    /* 128px */

    /* ========== Border Radius ========== */
    --radius-sm: 0.25rem;
    /* 4px */
    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 0.75rem;
    /* 12px */
    --radius-xl: 1rem;
    /* 16px */
    --radius-2xl: 1.5rem;
    /* 24px */
    --radius-3xl: 2rem;
    /* 32px */
    --radius-full: 9999px;
    /* Fully rounded */

    /* ========== 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 -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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(0, 168, 255, 0.3);

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

    /* ========== Z-Index ========== */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal: 1040;
    --z-index-popover: 1050;
    --z-index-tooltip: 1060;

    /* ========== Breakpoints ========== */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* ========== Container ========== */
    --container-max-width: 1440px;
    --container-padding: var(--spacing-lg);
}

/* ============================================
   Global Resets & Base Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-primary);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    font-weight: var(--font-weight-normal);
}

body {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== Typography ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    font-size: clamp(1.125rem, 1.5vw, 1.5rem);
    /* Range from 18px to 24px */
    line-height: var(--line-height-relaxed);
}

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

a:hover {
    color: var(--color-primary-dark);
}

/* ========== Images ========== */
img {
    /* width: 100%; */
    /* height: auto; */
    /* display: block; */
    /* max-height: 640px; */
}

/* ========== Container ========== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    /* padding-left: var(--container-padding); */
    /* padding-right: var(--container-padding); */
    height: 100%;
    /* background: var(--bg-dark); */
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-normal);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    outline: none;
    min-width: 220px;
}

.btn-primary {
    background: var(--color-primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary:hover {
    background-color: transparent;
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-gradient-outline {
    background: linear-gradient(white, white) padding-box,
        var(--color-primary-gradient) border-box !important;
    background-clip: padding-box, border-box;
    border: 2px solid transparent !important;
    position: relative;
}

.btn-gradient-outline span {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.btn-submit {
    background: var(--color-primary);
    color: var(--text-inverse);
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-top: 20px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* ========== Form Elements ========== */
input,
textarea,
select {
    font-size: var(--font-size-lg);
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    /* box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.1); */
}

input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary);
}

/* ========== 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);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

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

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

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

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.display_flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.display_flex_col {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}