/* ============================================================
   NEPAL DISASTER RELIEF FUND
   GLOBAL DESIGN SYSTEM
   ============================================================ */


/* ============================================================
   ROOT VARIABLES
   ============================================================ */

:root {

    --color-primary: #b3202a;
    --color-primary-dark: #8f1821;
    --color-primary-light: #d64b52;

    --color-dark: #171717;
    --color-dark-soft: #242424;

    --color-light: #f7f5f1;
    --color-white: #ffffff;

    --color-text: #242424;
    --color-text-soft: #5f5f5f;
    --color-muted: #858585;

    --color-border: rgba(23, 23, 23, 0.10);

    --color-success: #2f7d52;
    --color-warning: #b87918;
    --color-danger: #b3261e;

    --container-width: 1240px;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-xl: 34px;

    --shadow-soft:
        0 10px 35px rgba(0, 0, 0, 0.07);

    --shadow-card:
        0 18px 55px rgba(0, 0, 0, 0.10);

    --transition:
        0.3s ease;

    --font-heading:
        "Playfair Display",
        Georgia,
        serif;

    --font-body:
        "DM Sans",
        Arial,
        sans-serif;
}


/* ============================================================
   RESET
   ============================================================ */

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


html {
    scroll-behavior: smooth;
}


body {
    min-height: 100vh;

    background: var(--color-light);
    color: var(--color-text);

    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;

    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}


body.no-scroll {
    overflow: hidden;
}


img,
picture,
video,
svg {
    display: block;
    max-width: 100%;
}


img {
    height: auto;
}


button,
input,
select,
textarea {
    font: inherit;
}


button {
    cursor: pointer;
}


a {
    color: inherit;
    text-decoration: none;
}


ul,
ol {
    list-style: none;
}


/* ============================================================
   TYPOGRAPHY
   ============================================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-dark);

    font-family: var(--font-heading);
    font-weight: 600;

    line-height: 1.12;

    text-wrap: balance;
}


p {
    color: var(--color-text-soft);
}


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


.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    margin-bottom: 16px;

    color: var(--color-primary);

    font-size: 12px;
    font-weight: 700;

    letter-spacing: 0.16em;
    text-transform: uppercase;
}


.eyebrow::before {
    content: "";

    width: 28px;
    height: 1px;

    background: currentColor;
}


.section-title {
    max-width: 760px;

    font-size: clamp(38px, 5vw, 68px);

    letter-spacing: -0.035em;
}


.section-description {
    max-width: 680px;

    margin-top: 22px;

    font-size: 17px;
    line-height: 1.8;
}


/* ============================================================
   LAYOUT
   ============================================================ */

.container {
    width: min(
        calc(100% - 48px),
        var(--container-width)
    );

    margin-inline: auto;
}


.section {
    padding: 120px 0;
}


.section-sm {
    padding: 80px 0;
}


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


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


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


/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
    display: inline-flex;

    align-items: center;
    justify-content: center;
    gap: 10px;

    min-height: 52px;

    padding: 0 26px;

    border: 1px solid transparent;
    border-radius: 999px;

    font-size: 14px;
    font-weight: 700;

    letter-spacing: 0.02em;

    transition:
        transform var(--transition),
        background var(--transition),
        color var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}


.btn:hover {
    transform: translateY(-2px);
}


.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);

    box-shadow:
        0 12px 28px rgba(179, 32, 42, 0.22);
}


.btn-primary:hover {
    background: var(--color-primary-dark);
}


.btn-dark {
    background: var(--color-dark);
    color: var(--color-white);
}


.btn-dark:hover {
    background: #000000;
}


.btn-light {
    background: var(--color-white);
    color: var(--color-dark);
}


.btn-light:hover {
    background: var(--color-light);
}


.btn-outline {
    background: transparent;

    border-color: rgba(23, 23, 23, 0.20);

    color: var(--color-dark);
}


.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}


.btn-outline-light {
    background: transparent;

    border-color: rgba(255, 255, 255, 0.30);

    color: var(--color-white);
}


.btn-outline-light:hover {
    border-color: var(--color-white);
}


/* ============================================================
   HEADER
   ============================================================ */

.site-header {
    position: relative;
    z-index: 1000;

    width: 100%;

    background: rgba(247, 245, 241, 0.94);

    border-bottom: 1px solid rgba(23, 23, 23, 0.08);

    backdrop-filter: blur(18px);
}


.site-header.is-scrolled {
    position: fixed;
    top: 0;
    left: 0;

    box-shadow:
        0 8px 30px rgba(0, 0, 0, 0.06);
}


.header-inner {
    display: flex;

    align-items: center;
    justify-content: space-between;

    min-height: 84px;
}


.site-logo {
    display: inline-flex;

    align-items: center;
    gap: 12px;

    color: var(--color-dark);

    font-size: 17px;
    font-weight: 800;

    letter-spacing: -0.02em;
}


.site-logo-mark {
    display: grid;

    place-items: center;

    width: 38px;
    height: 38px;

    border-radius: 50%;

    background: var(--color-primary);

    color: var(--color-white);

    font-family: var(--font-heading);
    font-size: 17px;
}


.site-logo-text {
    display: flex;
    flex-direction: column;

    line-height: 1.05;
}


.site-logo-text small {
    margin-top: 4px;

    color: var(--color-muted);

    font-size: 9px;
    font-weight: 700;

    letter-spacing: 0.14em;
    text-transform: uppercase;
}


.main-navigation {
    display: flex;

    align-items: center;
    gap: 30px;
}


.main-navigation a {
    position: relative;

    color: var(--color-text-soft);

    font-size: 13px;
    font-weight: 600;

    transition:
        color var(--transition);
}


.main-navigation a::after {
    content: "";

    position: absolute;

    left: 0;
    bottom: -7px;

    width: 0;
    height: 1px;

    background: var(--color-primary);

    transition:
        width var(--transition);
}


.main-navigation a:hover {
    color: var(--color-dark);
}


.main-navigation a:hover::after {
    width: 100%;
}


.header-actions {
    display: flex;

    align-items: center;
    gap: 10px;
}


.header-select {
    height: 42px;

    padding: 0 12px;

    border: 1px solid rgba(23, 23, 23, 0.12);
    border-radius: 999px;

    background: transparent;

    color: var(--color-text);

    font-size: 12px;
    font-weight: 600;

    outline: none;
}


.mobile-menu-toggle {
    display: none;

    width: 44px;
    height: 44px;

    border: 0;
    border-radius: 50%;

    background: var(--color-dark);

    color: var(--color-white);
}


.mobile-menu-toggle span {
    display: block;

    width: 18px;
    height: 1px;

    margin: 4px auto;

    background: currentColor;
}


/* ============================================================
   PROGRESS
   ============================================================ */

.progress-wrapper {
    width: 100%;
}


.progress-track {
    width: 100%;
    height: 9px;

    overflow: hidden;

    border-radius: 999px;

    background: rgba(23, 23, 23, 0.10);
}


.progress-bar {
    width: 0;
    height: 100%;

    border-radius: inherit;

    background: var(--color-primary);

    transition:
        width 1.2s ease;
}


.progress-meta {
    display: flex;

    justify-content: space-between;

    margin-top: 10px;

    color: var(--color-muted);

    font-size: 12px;
    font-weight: 600;
}


/* ============================================================
   CARDS
   ============================================================ */

.card {
    background: var(--color-white);

    border: 1px solid var(--color-border);

    border-radius: var(--radius-lg);

    box-shadow: var(--shadow-soft);
}


.card-hover {
    transition:
        transform var(--transition),
        box-shadow var(--transition);
}


.card-hover:hover {
    transform: translateY(-5px);

    box-shadow: var(--shadow-card);
}


/* ============================================================
   FORMS
   ============================================================ */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}


.form-label {
    color: var(--color-dark);

    font-size: 13px;
    font-weight: 700;
}


.form-control {
    width: 100%;

    min-height: 52px;

    padding: 12px 15px;

    border: 1px solid rgba(23, 23, 23, 0.15);
    border-radius: 10px;

    background: var(--color-white);

    color: var(--color-dark);

    outline: none;

    transition:
        border-color var(--transition),
        box-shadow var(--transition);
}


.form-control:focus {
    border-color: var(--color-primary);

    box-shadow:
        0 0 0 4px rgba(179, 32, 42, 0.08);
}


textarea.form-control {
    min-height: 130px;

    resize: vertical;
}


select.form-control {
    cursor: pointer;
}


/* ============================================================
   UTILITY
   ============================================================ */

.hidden {
    display: none !important;
}


.visually-hidden {
    position: absolute !important;

    width: 1px;
    height: 1px;

    padding: 0;
    margin: -1px;

    overflow: hidden;
    clip: rect(0, 0, 0, 0);

    white-space: nowrap;

    border: 0;
}


.fade-up {
    opacity: 0;

    transform: translateY(25px);

    transition:
        opacity 0.8s ease,
        transform 0.8s ease;
}


.fade-up.is-visible {
    opacity: 1;

    transform: translateY(0);
}


/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1100px) {

    .main-navigation {
        gap: 20px;
    }

    .header-actions .btn {
        padding-inline: 20px;
    }

}


@media (max-width: 900px) {

    .section {
        padding: 90px 0;
    }


    .main-navigation {
        position: fixed;

        top: 84px;
        left: 0;
        right: 0;

        display: none;

        flex-direction: column;

        align-items: stretch;

        gap: 0;

        padding: 18px 24px 28px;

        background: var(--color-light);

        border-bottom: 1px solid var(--color-border);

        box-shadow:
            0 20px 35px rgba(0, 0, 0, 0.08);
    }


    .main-navigation.is-open {
        display: flex;
    }


    .main-navigation a {
        padding: 15px 0;

        border-bottom: 1px solid var(--color-border);
    }


    .main-navigation a::after {
        display: none;
    }


    .mobile-menu-toggle {
        display: block;
    }


    .header-actions .header-select {
        display: none;
    }

}


@media (max-width: 600px) {

    .container {
        width: min(
            calc(100% - 32px),
            var(--container-width)
        );
    }


    .section {
        padding: 72px 0;
    }


    .section-title {
        font-size: 40px;
    }


    .section-description {
        font-size: 15px;
    }


    .header-inner {
        min-height: 74px;
    }


    .main-navigation {
        top: 74px;
    }


    .site-logo {
        font-size: 14px;
    }


    .site-logo-mark {
        width: 34px;
        height: 34px;
    }


    .header-actions .btn {
        display: none;
    }


    .btn {
        width: 100%;
    }

}