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

body {
    font-family: 'DM Sans', sans-serif;
}

/* =============================================
   NAVBAR / HEADER
   ============================================= */
header {
    background-color: #ffffff;
    width: 100%;
    padding: 15px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid #f0f0f0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 24px;
    height: 24px;
    position: relative;
}
.logo-icon::before, .logo-icon::after {
    content: "";
    position: absolute;
    background-color: #10a37f;
    border-radius: 2px;
}
.logo-icon::before { top: 8px; left: 0; width: 24px; height: 8px; }
.logo-icon::after  { top: 0; left: 8px; width: 8px; height: 24px; }

.logo-text {
    font-family: 'DM Serif Display', serif;
    font-size: 22px;
    color: #0b3c26;
    font-weight: bold;
}

nav {
    display: flex;
    align-items: center;
    gap: 25px;
}

nav a {
    text-decoration: none;
    color: #333333;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

nav a:hover { color: #10a37f; }
nav a.active { color: #10a37f; font-weight: 700; }

.btn-signin {
    background-color: #0b3c26;
    color: #ffffff !important;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.btn-signin:hover { background-color: #10a37f; }

.btn-signout {
    background-color: transparent;
    color: #cc3333 !important;
    border: 1px solid #cc3333;
    padding: 7px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}
.btn-signout:hover { background-color: #cc3333; color: #fff !important; }

.account-container { position: relative; display: inline-block; }

.btn-account {
    background-color: #0b3c26;
    color: #ffffff !important;
    padding: 8px 18px;
    border-radius: 20px;
    border: none;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.btn-account:hover { background-color: #10a37f; }

.chevron-down {
    width: 8px; height: 8px;
    border-right: 2px solid #ffffff;
    border-bottom: 2px solid #ffffff;
    transform: rotate(45deg);
    margin-bottom: 3px;
    display: inline-block;
}

/* =============================================
   FLASH MESSAGES
   ============================================= */
.flash {
    padding: 12px 20px;
    margin: 16px auto;
    max-width: 600px;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}
.flash.success { background-color: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.flash.error   { background-color: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
    header { padding: 15px 20px; }
    nav { display: none; }
}