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

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

html,
body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: #F1F5F9;
    color: #0F172A;
    min-height: 100%;
}

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

.ep-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.ep-main {
    flex: 1;
}


/* =========================================================
   BLAZOR DEFAULTS
========================================================= */

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred.";
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* =========================================================
   ENGINEERING PLATFORM DESIGN SYSTEM
========================================================= */

.ep-container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* =========================
   NAVBAR
========================== */

.ep-navbar {
    background: #0F172A;
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

/* =========================
   LOGO
========================== */

.ep-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

    .ep-logo a {
        color: white;
        -webkit-text-decoration: none;
        text-decoration: none;
    }

.ep-logo-image {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.ep-menu-toggle {
    display: none;
}

.ep-nav-links {
    display: flex;
    gap: 28px;
}

    .ep-nav-links a {
        text-decoration: none;
        color: #CBD5E1;
        font-weight: 500;
        transition: 0.2s;
    }

        .ep-nav-links a:hover,
        .ep-nav-links .active {
            color: white;
        }

.ep-nav-buttons {
    display: flex;
    gap: 12px;
}

.ep-mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
}

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

.ep-btn {
    padding: 12px 20px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.2s;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.ep-btn-primary {
    background: #2563EB;
    color: white !important;
}

    .ep-btn-primary:hover {
        background: #1D4ED8;
    }

.ep-btn-outline {
    border: 1px solid #475569;
    color: white !important;
    background: transparent;
}

    .ep-btn-outline:hover {
        background: #1E293B;
    }

/* =========================
   HERO
========================== */

.ep-hero {
    background: linear-gradient( rgba(15,23,42,0.4), rgba(15,23,42,0.9) ), url('/images/main.png');
    background-size: cover;
    background-position: center;
    min-height: 650px;
    display: flex;
    align-items: center;
}

.ep-hero-content {
    max-width: 700px;
    color: white;
}

.ep-hero-subtitle {
    color: #38BDF8;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.ep-hero h1 {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 24px;
}

.ep-hero p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #CBD5E1;
    margin-bottom: 35px;
}

.ep-hero-buttons {
    display: flex;
    gap: 16px;
}

/* =========================
   SECTION
========================== */

.ep-section {
    padding: 90px 0;
}

.ep-section-header {
    text-align: center;
    margin-bottom: 50px;
}

    .ep-section-header h2 {
        font-size: 2.5rem;
        margin-bottom: 16px;
    }

    .ep-section-header p {
        color: #64748B;
    }

/* =========================
   FEATURES
========================== */

.ep-features {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
    gap: 24px;
}

.ep-feature-card {
    background: white;
    padding: 32px;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.ep-feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: #DBEAFE;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 22px;
}

.ep-feature-card h3 {
    margin-bottom: 14px;
}

.ep-feature-card p {
    color: #64748B;
    line-height: 1.7;
}

/* =========================
   NEWS
========================== */

.ep-news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(320px,1fr));
    gap: 24px;
}

.ep-news-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid #E2E8F0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.ep-news-image {
    height: 220px;
    background: #CBD5E1;
}

.ep-news-content {
    padding: 24px;
}

    .ep-news-content h3 {
        margin-bottom: 14px;
    }

    .ep-news-content p {
        color: #64748B;
        line-height: 1.7;
    }

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

.ep-form-container {
    width: 100%;
    max-width: 500px;
    margin: auto;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.ep-form-group {
    margin-bottom: 20px;
}

    .ep-form-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 600;
    }

.ep-form-control {
    width: 100%;
    padding: 14px;
    border: 1px solid #CBD5E1;
    border-radius: 12px;
}

/* =========================
   DASHBOARD
========================== */

.ep-dashboard-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: calc(100vh - 80px);
}

.ep-sidebar {
    background: #0F172A;
    color: white;
    padding: 24px;
}

.ep-sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 30px;
}

    .ep-sidebar-menu a {
        text-decoration: none;
        color: #CBD5E1;
        padding: 12px;
        border-radius: 10px;
    }

        .ep-sidebar-menu a:hover {
            background: #1E293B;
            color: white;
        }

.ep-dashboard-content {
    padding: 32px;
}

.ep-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.ep-stat-card {
    background: white;
    padding: 24px;
    border-radius: 18px;
    border: 1px solid #E2E8F0;
}

/* =========================
   UPLOAD
========================== */

.ep-upload-box {
    background: white;
    border: 2px dashed #CBD5E1;
    padding: 50px;
    border-radius: 20px;
    text-align: center;
}

.ep-upload-success {
    margin-top: 10px;
    color: #15803D;
    font-size: 0.95rem;
    font-weight: 600;
}


/* =========================
   FOOTER
========================== */

.ep-footer {
    background: #020617;
    color: #94A3B8;
    text-align: center;
    padding: 30px 0;
}

/* =========================
   MOBILE
========================== */
@media(max-width:900px) {

    .ep-navbar-content {
        flex-wrap: wrap;
        gap: 20px;
    }

    .ep-mobile-menu-btn {
        display: block;
    }

    .ep-nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 14px;
        padding-top: 10px;
    }

    .ep-menu-toggle:checked ~ .ep-nav-links {
        display: flex;
    }

    .ep-nav-links a {
        padding: 10px;
        background: #1E293B;
        border-radius: 10px;
        text-align: center;
    }

    .ep-nav-buttons {
        width: 100%;
        justify-content: center;
    }
}

/* =========================
   SPONSORS
========================== */

.ep-sponsors-section {
    background: white;
}

.ep-sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(180px,1fr));
    gap: 24px;
    align-items: center;
}

.ep-sponsor-logo {
    height: 120px;
    border: 1px solid #E2E8F0;
    border-radius: 18px;
    background: #F8FAFC;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: #334155;
    transition: 0.2s;
}

    .ep-sponsor-logo:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    }

.ep-sponsors-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
    gap: 24px;
}

.ep-page-text {
    font-size: 1.1rem;
    line-height: 1.9;
    color: #475569;
}

/* =========================
   USER MENU
========================== */

.ep-user-menu-wrapper {
    position: relative;
}

.ep-user-menu-toggle {
    display: none;
}

.ep-user-menu-button {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border-radius: 10px;
    background: #1E293B;
    color: white;
    cursor: pointer;
    user-select: none;
}

.ep-user-dropdown {
    position: absolute;
    top: 60px;
    right: 0;
    width: 220px;
    background: white;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid #E2E8F0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: none;
    z-index: 500;
}

.ep-user-menu-toggle:checked ~ .ep-user-dropdown {
    display: block;
}

.ep-user-dropdown a {
    display: block;
    padding: 14px 18px;
    text-decoration: none;
    color: #0F172A;
    transition: 0.2s;
}

    .ep-user-dropdown a:hover {
        background: #F1F5F9;
    }

.ep-logout-btn {
    width: 100%;
    border: none;
    background: transparent;
    padding: 14px 18px;
    text-align: left;
    cursor: pointer;
    font-size: 1rem;
    color: #DC2626;
}

    .ep-logout-btn:hover {
        background: #FEF2F2;
    }