/* External fonts */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue');

/* Global Reset */
*,
*::after,
*::before {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Global variables */
:root,
[data-theme=light] {
    /* Base surfaces */
    --base-color: hsl(0, 0%, 100%);
    --surface-1: hsl(0, 0%, 98%);
    --surface-2: hsl(220, 20%, 96%);

    /* Colors */
    --primary-color: hsl(230, 87%, 60%);
    --secondary-color: hsl(262, 70%, 55%);

    /* Text */
    --text-light: hsl(0, 0%, 95%);
    --text-dark: hsl(222, 15%, 10%);
    --text-color: hsl(222, 15%, 10%);
    --text-muted: hsl(222, 10%, 40%);

    /* UI states */
    --success-color: hsl(145, 60%, 42%);
    --danger-color: hsl(0, 80%, 55%);

    /* Borders / dividers */
    --border-color: hsl(220, 15%, 88%);

    /* Font face */
    --ff1: "DM Sans", Arial, Helvetica, sans-serif;
    --ff2: "Montserrat", Arial, Helvetica, sans-serif;

    /* Spacing */
    --spacing1: 0.25rem;
    --spacing2: 0.5rem;
    --spacing3: 0.75rem;
    --spacing4: 1rem;
    --spacing5: 1.25rem;
    --spacing6: 1.5rem;
    --spacing7: 2rem;
    --spacing8: 3rem;
    --spacing9: 5rem;

    /* Font size */
    --fs1: calc(1.375rem + 1.5vw);
    --fs2: calc(1.325rem + 0.9vw);
    --fs3: calc(1.3rem + 0.6vw);
    --fs4: calc(1.275rem + 0.3vw);
    --fs5: 1.25rem;
    --fs6: 1rem;
}

[data-theme=dark] {
    color-scheme: dark;

    /* Base surfaces */
    --base-color: hsl(222, 18%, 10%);
    --surface-1: hsl(222, 18%, 14%);
    --surface-2: hsl(222, 18%, 18%);

    /* Text */
    --text-color: hsl(0, 0%, 95%);
    --text-muted: hsl(0, 0%, 70%);

    /* Borders / dividers */
    --border-color: hsl(222, 15%, 28%);
}


/* Override default styles */
html,
body {
    font-family: var(--ff2);
    background-color: var(--base-color);
    color: var(--text-color);
    scroll-behavior: smooth;
}

h1,
.h1,
h2,
.h2,
h3,
.h3,
h4,
.h4,
h5,
.h5,
h6,
.h6 {
    font-family: var(--ff1);
    margin-top: 0;
    margin-bottom: var(--spacing2);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-color);
}

h1,
.h1 {
    font-size: var(--fs1);
}

h2,
.h2 {
    font-size: var(--fs2);
}

h3,
.h3 {
    font-size: var(--fs3);
}

h4,
.h4 {
    font-size: var(--fs4);
}

h5,
.h5 {
    font-size: var(--fs5);
}

h6,
.h6 {
    font-size: var(--fs6);
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

/* Utilities */

/* buttons */
.button {
    --btn-text: var(--text-color);
    --btn-color: transparent;
    --btn-border-color: transparent;
    --btn-border-width: 1px;
    --btn-border-radius: 0.25rem;
    display: inline-block;
    padding: var(--spacing2) var(--spacing4);
    font-size: var(--fs6);
    color: var(--btn-text);
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    border: var(--btn-border-width) solid var(--btn-border-color);
    border-radius: var(--btn-border-radius);
    background-color: var(--btn-color);
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.button:hover {
    background-color: color-mix(in srgb, var(--btn-color), black 10%);
    border-color: color-mix(in srgb, var(--btn-color), black 15%);
}

.button:active {
    background-color: color-mix(in srgb, var(--btn-color), black 20%);
    border-color: color-mix(in srgb, var(--btn-color), black 25%);
}

.button:focus-visible {
    box-shadow: 0 0 0 0.25rem color-mix(in srgb, var(--btn-color), transparent 70%);
}

.button.primary {
    --btn-text: var(--text-light);
    --btn-color: var(--primary-color);
}

.button.success {
    --btn-text: var(--text-dark);
    --btn-color: var(--success-color);
}

.button.danger {
    --btn-text: var(--text-light);
    --btn-color: var(--danger-color);
}

/* containers */
.container {
    width: 100%;
    padding: 0 var(--spacing3);
    margin: auto;
}

.container-sm {
    max-width: 540px;
    margin: auto;
    padding: 0 var(--spacing3);
}

.container-md {
    max-width: 720px;
    margin: auto;
    padding: 0 var(--spacing3);
}

.container-lg {
    max-width: 960px;
    margin: auto;
    padding: 0 var(--spacing3);
}

.container-xl {
    max-width: 1140px;
    margin: auto;
    padding: 0 var(--spacing3);
}

/* form control */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing2);
    margin-bottom: var(--spacing5);
}

.form-label {
    font-family: var(--ff1);
    font-size: var(--fs6);
    color: var(--text-color);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: var(--spacing3) var(--spacing4);
    font-size: var(--fs6);
    font-family: var(--ff2);
    color: var(--text-color);
    background-color: var(--surface-1, var(--base-color));
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.15));
    border-radius: 0.5rem;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

/* PLACEHOLDER */
.form-control::placeholder {
    color: color-mix(in srgb, var(--text-color), transparent 60%);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--primary-color), transparent 75%);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* validate state */
.form-control.is-success {
    border-color: var(--success-color);
}

.form-control.is-success:focus {
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--success-color), transparent 75%);
}

.form-control.is-error {
    border-color: var(--danger-color);
}

.form-control.is-error:focus {
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--danger-color), transparent 75%);
}

/* feedback */
.form-feedback {
    font-size: 0.85rem;
    margin-top: -0.25rem;
}

.form-feedback.success {
    color: var(--success-color);
}

.form-feedback.error {
    color: var(--danger-color);
}

/* Select */
.select {
    /* remove arrow */
    appearance: none;

    /* custom arrow */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%23666' d='M5 7l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing1) center;
    background-size: 1rem;

    padding: var(--spacing3) var(--spacing8) var(--spacing3) var(--spacing4);
    font-size: var(--fs6);
    color: var(--text-color);
    background-color: var(--surface-1, var(--base-color));
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    outline: none;
    cursor: pointer;
    transition: border-color 0.15s ease,
        box-shadow 0.15s ease,
        background-color 0.15s ease;
}

.select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--primary-color), transparent 75%);
}

.select:hover {
    border-color: color-mix(in srgb, var(--border-color), var(--text-color) 20%);
}

/* navbar */
.navbar {
    --brand-font: "Bebas Neue", "Arial Narrow", Arial, Helvetica, sans-serif;
    --brand-color: var(--primary-color);
    display: flex;
    gap: var(--spacing4);
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    color: var(--navbar-text-color);
    padding: var(--spacing4) 0;
    border-bottom: 1px solid var(--border-color);
}

.navbar>.container {
    display: flex;
    gap: inherit;
    align-items: center;
    justify-content: space-between;
}

.navbar .navbar-brand {
    font-family: var(--brand-font);
    font-size: var(--fs2);
    font-weight: normal;
    color: var(--brand-color);
    text-decoration: none;
    padding: var(--spacing1) 0;
}

.navbar-nav {
    display: flex;
    flex-grow: 1;
    align-items: center;
}

.navbar .nav {
    display: flex;
    gap: var(--spacing4);
    list-style: none;
    align-items: center;
}

.navbar .nav .nav-link {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.15s ease;

}

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

.profile-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    cursor: pointer;
    font-family: var(--ff1);
    font-size: 0.9rem;
    text-decoration: none;
    user-select: none;
    border: 2px solid var(--primary-color);
    text-transform: uppercase;
}

.theme-toggler {
    --bg-light: hsl(230, 25%, 85%);
    --bg-dark: hsl(230, 87%, 75%);
    --toggler-thumb: #fff;
    --width: 3.5rem;
    --height: 2rem;
    --margin: 0.25rem;
    --thumb-width: calc(var(--height) - var(--margin) * 2);
    position: relative;
    width: var(--width);
    height: var(--height);
    background-color: var(--bg-light);
    border: none;
    border-radius: 50rem;
}

.theme-toggler::after {
    content: "";
    position: absolute;
    display: block;
    width: var(--thumb-width);
    aspect-ratio: 1 / 1;
    background-color: var(--toggler-thumb);
    border-radius: 100%;
    left: 0;
    top: 50%;
    translate: var(--margin) -50%;
    transition: translate 0.25s ease,
        background-color 0.25s ease;
}

[data-theme="dark"] .theme-toggler {
    background-color: var(--bg-dark)
}

[data-theme="dark"] .theme-toggler::after {
    translate: calc(var(--width) - var(--thumb-width) - var(--margin)) -50%;
}


.footer {
    padding: 50px 50px 0 50px;
    border-top: 1px solid var(--border-color);
    font-family: var(--ff1);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 50px;
    padding-bottom: 20px;
}

.footer-brand {
    max-width: 400px;
}

.footer-brand h3 {
    font-family: "Bebas Neue", "Arial Narrow", Arial, sans-serif;
    color: var(--primary-color);
    font-size: 40px;
    margin-bottom: 20px;
}

.footer-brand p {
    font-family: var(--ff2);
    color: var(--text-muted);
    font-size: var(--fs6);
}

.footer-links h4,
.footer-social h4 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.15s ease;
}

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

.social-icons {
    display: flex;
    flex-direction: column;
}

.social-icons a {
    width: 40px;
    height: 40px;
    color: var(--text-color);
    font-size: 15px;
    text-decoration: none;
    transition: 0.3s;
}

.social-icons a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    padding: 20px;
    border-top: 1px solid;
    text-align: center;
    border-top: 1px solid var(--border-color);
}